ruby4.0-rubygem-rack-2.2-2.2.22-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2026:10286-1 Final 1 1 2026-03-04T00:00:00Z current 2026-03-04T00:00:00Z 2026-03-04T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z ruby4.0-rubygem-rack-2.2-2.2.22-1.1 on GA media These are all security issues fixed in the ruby4.0-rubygem-rack-2.2-2.2.22-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2026-10286 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2013-0262/ SUSE CVE CVE-2013-0262 page https://www.suse.com/security/cve/CVE-2013-0263/ SUSE CVE CVE-2013-0263 page https://www.suse.com/security/cve/CVE-2015-3225/ SUSE CVE CVE-2015-3225 page https://www.suse.com/security/cve/CVE-2018-16471/ SUSE CVE CVE-2018-16471 page https://www.suse.com/security/cve/CVE-2019-16782/ SUSE CVE CVE-2019-16782 page https://www.suse.com/security/cve/CVE-2020-8184/ SUSE CVE CVE-2020-8184 page https://www.suse.com/security/cve/CVE-2022-30122/ SUSE CVE CVE-2022-30122 page https://www.suse.com/security/cve/CVE-2022-30123/ SUSE CVE CVE-2022-30123 page https://www.suse.com/security/cve/CVE-2022-44570/ SUSE CVE CVE-2022-44570 page https://www.suse.com/security/cve/CVE-2022-44571/ SUSE CVE CVE-2022-44571 page https://www.suse.com/security/cve/CVE-2022-44572/ SUSE CVE CVE-2022-44572 page https://www.suse.com/security/cve/CVE-2023-27530/ SUSE CVE CVE-2023-27530 page https://www.suse.com/security/cve/CVE-2023-27539/ SUSE CVE CVE-2023-27539 page https://www.suse.com/security/cve/CVE-2024-25126/ SUSE CVE CVE-2024-25126 page https://www.suse.com/security/cve/CVE-2024-26141/ SUSE CVE CVE-2024-26141 page https://www.suse.com/security/cve/CVE-2024-26146/ SUSE CVE CVE-2024-26146 page https://www.suse.com/security/cve/CVE-2025-25184/ SUSE CVE CVE-2025-25184 page https://www.suse.com/security/cve/CVE-2025-27111/ SUSE CVE CVE-2025-27111 page https://www.suse.com/security/cve/CVE-2025-27610/ SUSE CVE CVE-2025-27610 page https://www.suse.com/security/cve/CVE-2025-46727/ SUSE CVE CVE-2025-46727 page https://www.suse.com/security/cve/CVE-2025-59830/ SUSE CVE CVE-2025-59830 page https://www.suse.com/security/cve/CVE-2025-61770/ SUSE CVE CVE-2025-61770 page https://www.suse.com/security/cve/CVE-2025-61771/ SUSE CVE CVE-2025-61771 page https://www.suse.com/security/cve/CVE-2025-61772/ SUSE CVE CVE-2025-61772 page https://www.suse.com/security/cve/CVE-2025-61919/ SUSE CVE CVE-2025-61919 page https://www.suse.com/security/cve/CVE-2026-22860/ SUSE CVE CVE-2026-22860 page https://www.suse.com/security/cve/CVE-2026-25500/ SUSE CVE CVE-2026-25500 page openSUSE Tumbleweed ruby4.0-rubygem-rack-2.2-2.2.22-1.1 ruby4.0-rubygem-rack-2.2-2.2.22-1.1 as a component of openSUSE Tumbleweed rack/file.rb (Rack::File) in Rack 1.5.x before 1.5.2 and 1.4.x before 1.4.5 allows attackers to access arbitrary files outside the intended root directory via a crafted PATH_INFO environment variable, probably a directory traversal vulnerability that is remotely exploitable, aka "symlink path traversals." CVE-2013-0262 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2013-0262.html CVE-2013-0262 https://bugzilla.suse.com/802795 SUSE Bug 802795 Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before 1.3.10, 1.2.x before 1.2.8, and 1.1.x before 1.1.6 allows remote attackers to guess the session cookie, gain privileges, and execute arbitrary code via a timing attack involving an HMAC comparison function that does not run in constant time. CVE-2013-0263 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2013-0263.html CVE-2013-0263 https://bugzilla.suse.com/802794 SUSE Bug 802794 https://bugzilla.suse.com/809839 SUSE Bug 809839 lib/rack/utils.rb in Rack before 1.5.4 and 1.6.x before 1.6.2, as used with Ruby on Rails 3.x and 4.x and other products, allows remote attackers to cause a denial of service (SystemStackError) via a request with a large parameter depth. CVE-2015-3225 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 5 AV:N/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2015-3225.html CVE-2015-3225 https://bugzilla.suse.com/934797 SUSE Bug 934797 There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the `scheme` method on `Rack::Request`. Applications that expect the scheme to be limited to 'http' or 'https' and do not escape the return value could be vulnerable to an XSS attack. Note that applications using the normal escaping mechanisms provided by Rails may not impacted, but applications that bypass the escaping mechanisms, or do not use them may be vulnerable. CVE-2018-16471 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2018-16471.html CVE-2018-16471 https://bugzilla.suse.com/1114828 SUSE Bug 1114828 https://bugzilla.suse.com/1116600 SUSE Bug 1116600 https://bugzilla.suse.com/1122178 SUSE Bug 1122178 There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison. CVE-2019-16782 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2019-16782.html CVE-2019-16782 https://bugzilla.suse.com/1159548 SUSE Bug 1159548 https://bugzilla.suse.com/1183174 SUSE Bug 1183174 A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix. CVE-2020-8184 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate 5 AV:N/AC:L/Au:N/C:N/I:P/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2020-8184.html CVE-2020-8184 https://bugzilla.suse.com/1173351 SUSE Bug 1173351 https://bugzilla.suse.com/1177352 SUSE Bug 1177352 https://bugzilla.suse.com/1193081 SUSE Bug 1193081 A possible denial of service vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 in the multipart parsing component of Rack. CVE-2022-30122 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-30122.html CVE-2022-30122 https://bugzilla.suse.com/1200748 SUSE Bug 1200748 https://bugzilla.suse.com/1201588 SUSE Bug 1201588 A sequence injection vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 which could allow is a possible shell escape in the Lint and CommonLogger components of Rack. CVE-2022-30123 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-30123.html CVE-2022-30123 https://bugzilla.suse.com/1200750 SUSE Bug 1200750 A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted. CVE-2022-44570 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-44570.html CVE-2022-44570 https://bugzilla.suse.com/1207597 SUSE Bug 1207597 There is a denial of service vulnerability in the Content-Disposition parsingcomponent of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1. This could allow an attacker to craft an input that can cause Content-Disposition header parsing in Rackto take an unexpected amount of time, possibly resulting in a denial ofservice attack vector. This header is used typically used in multipartparsing. Any applications that parse multipart posts using Rack (virtuallyall Rails applications) are impacted. CVE-2022-44571 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-44571.html CVE-2022-44571 https://bugzilla.suse.com/1207599 SUSE Bug 1207599 A denial of service vulnerability in the multipart parsing component of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1 and 3.0.0.1 could allow an attacker tocraft input that can cause RFC2183 multipart boundary parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted. CVE-2022-44572 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-44572.html CVE-2022-44572 https://bugzilla.suse.com/1207596 SUSE Bug 1207596 A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected. CVE-2023-27530 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2023-27530.html CVE-2023-27530 https://bugzilla.suse.com/1209095 SUSE Bug 1209095 There is a denial of service vulnerability in the header parsing component of Rack. CVE-2023-27539 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2023-27539.html CVE-2023-27539 https://bugzilla.suse.com/1209503 SUSE Bug 1209503 Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack's media type parser to take much longer than expected, leading to a possible denial of service vulnerability (ReDos 2nd degree polynomial). This vulnerability is patched in 3.0.9.1 and 2.2.8.1. CVE-2024-25126 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2024-25126.html CVE-2024-25126 https://bugzilla.suse.com/1220239 SUSE Bug 1220239 Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond with an unexpectedly large response. Responding with such large responses could lead to a denial of service issue. Vulnerable applications will use the `Rack::File` middleware or the `Rack::Utils.byte_ranges` methods (this includes Rails applications). The vulnerability is fixed in 3.0.9.1 and 2.2.8.1. CVE-2024-26141 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2024-26141.html CVE-2024-26141 https://bugzilla.suse.com/1220242 SUSE Bug 1220242 Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1. CVE-2024-26146 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2024-26146.html CVE-2024-26146 https://bugzilla.suse.com/1220248 SUSE Bug 1220248 https://bugzilla.suse.com/1227310 SUSE Bug 1227310 Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.11, 3.0.12, and 3.1.10, Rack::CommonLogger can be exploited by crafting input that includes newline characters to manipulate log entries. The supplied proof-of-concept demonstrates injecting malicious content into logs. When a user provides the authorization credentials via Rack::Auth::Basic, if success, the username will be put in env['REMOTE_USER'] and later be used by Rack::CommonLogger for logging purposes. The issue occurs when a server intentionally or unintentionally allows a user creation with the username contain CRLF and white space characters, or the server just want to log every login attempts. If an attacker enters a username with CRLF character, the logger will log the malicious username with CRLF characters into the logfile. Attackers can break log formats or insert fraudulent entries, potentially obscuring real activity or injecting malicious data into log files. Versions 2.2.11, 3.0.12, and 3.1.10 contain a fix. CVE-2025-25184 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-25184.html CVE-2025-25184 https://bugzilla.suse.com/1237141 SUSE Bug 1237141 Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitised header values from the X-Sendfile-Type header. An attacker can exploit this by injecting escape sequences (such as newline characters) into the header, resulting in log injection. This vulnerability is fixed in 2.2.12, 3.0.13, and 3.1.11. CVE-2025-27111 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-27111.html CVE-2025-27111 https://bugzilla.suse.com/1238607 SUSE Bug 1238607 Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.13, 3.0.14, and 3.1.12, `Rack::Static` can serve files under the specified `root:` even if `urls:` are provided, which may expose other files under the specified `root:` unexpectedly. The vulnerability occurs because `Rack::Static` does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. By exploiting this vulnerability, an attacker can gain access to all files under the specified `root:` directory, provided they are able to determine then path of the file. Versions 2.2.13, 3.0.14, and 3.1.12 contain a patch for the issue. Other mitigations include removing usage of `Rack::Static`, or ensuring that `root:` points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue. CVE-2025-27610 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-27610.html CVE-2025-27610 https://bugzilla.suse.com/1239298 SUSE Bug 1239298 Rack is a modular Ruby web server interface. Prior to versions 2.2.14, 3.0.16, and 3.1.14, `Rack::QueryParser` parses query strings and `application/x-www-form-urlencoded` bodies into Ruby data structures without imposing any limit on the number of parameters, allowing attackers to send requests with extremely large numbers of parameters. The vulnerability arises because `Rack::QueryParser` iterates over each `&`-separated key-value pair and adds it to a Hash without enforcing an upper bound on the total number of parameters. This allows an attacker to send a single request containing hundreds of thousands (or more) of parameters, which consumes excessive memory and CPU during parsing. An attacker can trigger denial of service by sending specifically crafted HTTP requests, which can cause memory exhaustion or pin CPU resources, stalling or crashing the Rack server. This results in full service disruption until the affected worker is restarted. Versions 2.2.14, 3.0.16, and 3.1.14 fix the issue. Some other mitigations are available. One may use middleware to enforce a maximum query string size or parameter count, or employ a reverse proxy (such as Nginx) to limit request sizes and reject oversized query strings or bodies. Limiting request body sizes and query string lengths at the web server or CDN level is an effective mitigation. CVE-2025-46727 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-46727.html CVE-2025-46727 https://bugzilla.suse.com/1242891 SUSE Bug 1242891 Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters than intended. Applications or middleware that directly invoke Rack::QueryParser with its default configuration (no explicit delimiter) could be exposed to increased CPU and memory consumption. This can be abused as a limited denial-of-service vector. This issue has been patched in version 2.2.18. CVE-2025-59830 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-59830.html CVE-2025-59830 https://bugzilla.suse.com/1250552 SUSE Bug 1250552 Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` buffers the entire multipart preamble (bytes before the first boundary) in memory without any size limit. A client can send a large preamble followed by a valid boundary, causing significant memory use and potential process termination due to out-of-memory (OOM) conditions. Remote attackers can trigger large transient memory spikes by including a long preamble in multipart/form-data requests. The impact scales with allowed request sizes and concurrency, potentially causing worker crashes or severe slowdown due to garbage collection. Versions 2.2.19, 3.1.17, and 3.2.2 enforce a preamble size limit (e.g., 16 KiB) or discard preamble data entirely. Workarounds include limiting total request body size at the proxy or web server level and monitoring memory and set per-process limits to prevent OOM conditions. CVE-2025-61770 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-61770.html CVE-2025-61770 https://bugzilla.suse.com/1251245 SUSE Bug 1251245 Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, ``Rack::Multipart::Parser` stores non-file form fields (parts without a `filename`) entirely in memory as Ruby `String` objects. A single large text field in a multipart/form-data request (hundreds of megabytes or more) can consume equivalent process memory, potentially leading to out-of-memory (OOM) conditions and denial of service (DoS). Attackers can send large non-file fields to trigger excessive memory usage. Impact scales with request size and concurrency, potentially leading to worker crashes or severe garbage-collection overhead. All Rack applications processing multipart form submissions are affected. Versions 2.2.19, 3.1.17, and 3.2.2 enforce a reasonable size cap for non-file fields (e.g., 2 MiB). Workarounds include restricting maximum request body size at the web-server or proxy layer (e.g., Nginx `client_max_body_size`) and validating and rejecting unusually large form fields at the application level. CVE-2025-61771 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-61771.html CVE-2025-61771 https://bugzilla.suse.com/1251243 SUSE Bug 1251243 Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` can accumulate unbounded data when a multipart part's header block never terminates with the required blank line (`CRLFCRLF`). The parser keeps appending incoming bytes to memory without a size cap, allowing a remote attacker to exhaust memory and cause a denial of service (DoS). Attackers can send incomplete multipart headers to trigger high memory use, leading to process termination (OOM) or severe slowdown. The effect scales with request size limits and concurrency. All applications handling multipart uploads may be affected. Versions 2.2.19, 3.1.17, and 3.2.2 cap per-part header size (e.g., 64 KiB). As a workaround, restrict maximum request sizes at the proxy or web server layer (e.g., Nginx `client_max_body_size`). CVE-2025-61772 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-61772.html CVE-2025-61772 https://bugzilla.suse.com/1251242 SUSE Bug 1251242 Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-urlencoded`, calling `rack.input.read(nil)` without enforcing a length or cap. Large request bodies can therefore be buffered completely into process memory before parsing, leading to denial of service (DoS) through memory exhaustion. Users should upgrade to Rack version 2.2.20, 3.1.18, or 3.2.3, anu of which enforces form parameter limits using `query_parser.bytesize_limit`, preventing unbounded reads of `application/x-www-form-urlencoded` bodies. Additionally, enforce strict maximum body size at the proxy or web server layer (e.g., Nginx `client_max_body_size`, Apache `LimitRequestBody`). CVE-2025-61919 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-61919.html CVE-2025-61919 https://bugzilla.suse.com/1251934 SUSE Bug 1251934 Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory`'s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root. Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue. CVE-2026-22860 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2026-22860.html CVE-2026-22860 https://bugzilla.suse.com/1258452 SUSE Bug 1258452 Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory` generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename starts with the `javascript:` scheme (e.g. `javascript:alert(1)`), the generated index contains an anchor whose `href` is exactly `javascript:alert(1)`. Clicking the entry executes JavaScript in the browser (demonstrated with `alert(1)`). Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue. CVE-2026-25500 openSUSE Tumbleweed:ruby4.0-rubygem-rack-2.2-2.2.22-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2026-25500.html CVE-2026-25500 https://bugzilla.suse.com/1258456 SUSE Bug 1258456