{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2026-26018","title":"Title"},{"category":"description","text":"CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a predictable pseudo-random number generator (PRNG) for generating a secret query name, combined with a fatal error handler that terminates the entire process. This issue has been patched in version 1.14.2.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2026-26018","url":"https://www.suse.com/security/cve/CVE-2026-26018"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1259319 for CVE-2026-26018","url":"https://bugzilla.suse.com/1259319"}],"title":"SUSE CVE CVE-2026-26018","tracking":{"current_release_date":"2026-03-12T08:52:47Z","generator":{"date":"2026-03-07T00:25:55Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2026-26018","initial_release_date":"2026-03-07T00:25:55Z","revision_history":[{"date":"2026-03-07T00:25:55Z","number":"2","summary":"references added,severity changed from  to important"},{"date":"2026-03-09T00:23:57Z","number":"3","summary":"vulnerabilities added"},{"date":"2026-03-12T08:52:47Z","number":"4","summary":"more updates released"}],"status":"interim","version":"4"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Package Hub 15 SP6","product":{"name":"SUSE Package Hub 15 SP6","product_id":"SUSE Package Hub 15 SP6"}},{"category":"product_name","name":"openSUSE Leap 15.6","product":{"name":"openSUSE Leap 15.6","product_id":"openSUSE Leap 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Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"coredns-1.14.2-bp156.4.16.1 as component of SUSE Package Hub 15 SP6","product_id":"SUSE Package Hub 15 SP6:coredns-1.14.2-bp156.4.16.1"},"product_reference":"coredns-1.14.2-bp156.4.16.1","relates_to_product_reference":"SUSE Package Hub 15 SP6"},{"category":"default_component_of","full_product_name":{"name":"coredns-extras-1.14.2-bp156.4.16.1 as component of SUSE Package Hub 15 SP6","product_id":"SUSE Package Hub 15 SP6:coredns-extras-1.14.2-bp156.4.16.1"},"product_reference":"coredns-extras-1.14.2-bp156.4.16.1","relates_to_product_reference":"SUSE Package Hub 15 SP6"},{"category":"default_component_of","full_product_name":{"name":"coredns-1.14.2-bp156.4.16.1 as component of openSUSE Leap 15.6","product_id":"openSUSE Leap 15.6:coredns-1.14.2-bp156.4.16.1"},"product_reference":"coredns-1.14.2-bp156.4.16.1","relates_to_product_reference":"openSUSE Leap 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Page","text":"https://www.suse.com/security/cve/CVE-2026-26018"}],"notes":[{"category":"general","text":"CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a predictable pseudo-random number generator (PRNG) for generating a secret query name, combined with a fatal error handler that terminates the entire process. This issue has been patched in version 1.14.2.","title":"CVE description"}],"product_status":{"recommended":["SUSE Package Hub 15 SP6:coredns-1.14.2-bp156.4.16.1","SUSE Package Hub 15 SP6:coredns-extras-1.14.2-bp156.4.16.1","openSUSE Leap 15.6:coredns-1.14.2-bp156.4.16.1","openSUSE Leap 15.6:coredns-extras-1.14.2-bp156.4.16.1","openSUSE Tumbleweed:coredns-1.14.2-1.1","openSUSE Tumbleweed:coredns-extras-1.14.2-1.1"]},"references":[{"category":"external","summary":"CVE-2026-26018","url":"https://www.suse.com/security/cve/CVE-2026-26018"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1259319 for CVE-2026-26018","url":"https://bugzilla.suse.com/1259319"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Package Hub 15 SP6:coredns-1.14.2-bp156.4.16.1","SUSE Package Hub 15 SP6:coredns-extras-1.14.2-bp156.4.16.1","openSUSE Leap 15.6:coredns-1.14.2-bp156.4.16.1","openSUSE Leap 15.6:coredns-extras-1.14.2-bp156.4.16.1","openSUSE Tumbleweed:coredns-1.14.2-1.1","openSUSE Tumbleweed:coredns-extras-1.14.2-1.1"]}],"threats":[{"category":"impact","date":"2026-03-06T17:02:39Z","details":"important"}],"title":"CVE-2026-26018"}]}