{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"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-2026-23991","title":"Title"},{"category":"description","text":"go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, if the TUF repository (or any of its mirrors) returns invalid TUF metadata JSON (valid JSON but not well formed TUF metadata), the client will panic during parsing, causing a denial of service. The panic happens before any signature is validated. This means that a compromised repository/mirror/cache can DoS clients without having access to any signing key. Version 2.3.1 fixes the issue. No known workarounds are available.","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-2026-23991","url":"https://www.suse.com/security/cve/CVE-2026-23991"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1257079 for CVE-2026-23991","url":"https://bugzilla.suse.com/1257079"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0403-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-February/024084.html"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0757-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024527.html"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0777-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024541.html"}],"title":"SUSE CVE CVE-2026-23991","tracking":{"current_release_date":"2026-03-13T13:18:50Z","generator":{"date":"2026-01-23T00:24:41Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2026-23991","initial_release_date":"2026-01-23T00:24:41Z","revision_history":[{"date":"2026-01-23T00:24:41Z","number":"2","summary":"vulnerabilities added,references added,severity changed from  to moderate"},{"date":"2026-02-06T00:24:07Z","number":"3","summary":"more updates marked as affected"},{"date":"2026-02-10T00:24:38Z","number":"4","summary":"references added"},{"date":"2026-02-25T00:25:34Z","number":"5","summary":"scores added,updates released"},{"date":"2026-02-27T00:26:12Z","number":"6","summary":"unknown changes"},{"date":"2026-03-03T00:25:40Z","number":"7","summary":"updates entered QA"},{"date":"2026-03-04T00:28:15Z","number":"8","summary":"more updates released,references added"},{"date":"2026-03-10T00:26:37Z","number":"9","summary":"unknown changes"},{"date":"2026-03-13T13:18:50Z","number":"10","summary":"unknown changes"}],"status":"interim","version":"10"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Desktop 15 SP7","product":{"name":"SUSE Linux Enterprise Desktop 15 SP7","product_id":"SUSE Linux Enterprise Desktop 15 SP7","product_identification_helper":{"cpe":"cpe:/o:suse:sled:15:sp7"}}},{"category":"product_name","name":"SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS","product":{"name":"SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS","product_id":"SUSE Linux Enterprise High Performance Computing 15 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Starting in version 2.0.0 and prior to version 2.3.1, if the TUF repository (or any of its mirrors) returns invalid TUF metadata JSON (valid JSON but not well formed TUF metadata), the client will panic during parsing, causing a denial of service. The panic happens before any signature is validated. This means that a compromised repository/mirror/cache can DoS clients without having access to any signing key. Version 2.3.1 fixes the issue. No known workarounds are available.","title":"CVE description"}],"product_status":{"known_affected":["SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:cosign","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:cosign","SUSE Linux Enterprise Server 15 SP4-LTSS:cosign","SUSE Linux Enterprise Server 15 SP5-LTSS:cosign","SUSE Linux Enterprise Server 15 SP6-LTSS:cosign","SUSE Linux Enterprise Server 16.0:cosign","SUSE Linux Enterprise Server for SAP Applications 15 SP4:cosign","SUSE Linux Enterprise Server for SAP Applications 15 SP5:cosign","SUSE Linux Enterprise Server for SAP Applications 15 SP6:cosign","SUSE Linux Enterprise Server for SAP applications 16.0:cosign"],"known_not_affected":["SUSE Linux Enterprise Server 16.0:vexctl","SUSE Linux Enterprise Server for SAP applications 16.0:vexctl"],"recommended":["SUSE Linux Enterprise Desktop 15 SP7:cosign-3.0.5-150400.3.35.1","SUSE Linux Enterprise Desktop 15 SP7:cosign-bash-completion-3.0.5-150400.3.35.1","SUSE 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SUSE-SU-2026:0403-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-February/024084.html"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0757-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024527.html"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0777-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024541.html"}],"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 Linux Enterprise Desktop 15 SP7:cosign-3.0.5-150400.3.35.1","SUSE Linux Enterprise Desktop 15 SP7:cosign-bash-completion-3.0.5-150400.3.35.1","SUSE Linux Enterprise Desktop 15 SP7:cosign-zsh-completion-3.0.5-150400.3.35.1","SUSE Linux Enterprise High Performance Computing 15 SP7:cosign-3.0.5-150400.3.35.1","SUSE Linux Enterprise High Performance Computing 15 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