{"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-2026-22703","title":"Title"},{"category":"description","text":"Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor entry, Cosign verifies the Rekor entry signature, and also compares the artifact's digest, the user's public key from either a Fulcio certificate or provided by the user, and the artifact signature to the Rekor entry contents. Without these comparisons, Cosign would accept any response from Rekor as valid. A malicious actor that has compromised a user's identity or signing key could construct a valid Cosign bundle by including any arbitrary Rekor entry, thus preventing the user from being able to audit the signing event. This issue has been patched in versions 2.6.2 and 3.0.4.","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-2026-22703","url":"https://www.suse.com/security/cve/CVE-2026-22703"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1256496 for CVE-2026-22703","url":"https://bugzilla.suse.com/1256496"},{"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 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SP5"},{"category":"default_component_of","full_product_name":{"name":"cosign as component of SUSE Linux Enterprise Server for SAP applications 16.0","product_id":"SUSE Linux Enterprise Server for SAP applications 16.0:cosign"},"product_reference":"cosign","relates_to_product_reference":"SUSE Linux Enterprise Server for SAP applications 16.0"},{"category":"default_component_of","full_product_name":{"name":"vexctl as component of SUSE Linux Enterprise Server for SAP applications 16.0","product_id":"SUSE Linux Enterprise Server for SAP applications 16.0:vexctl"},"product_reference":"vexctl","relates_to_product_reference":"SUSE Linux Enterprise Server for SAP applications 16.0"}]},"vulnerabilities":[{"cve":"CVE-2026-22703","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2026-22703"}],"notes":[{"category":"general","text":"Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor entry, Cosign verifies the Rekor entry signature, and also compares the artifact's digest, the user's public key from either a Fulcio certificate or provided by the user, and the artifact signature to the Rekor entry contents. Without these comparisons, Cosign would accept any response from Rekor as valid. A malicious actor that has compromised a user's identity or signing key could construct a valid Cosign bundle by including any arbitrary Rekor entry, thus preventing the user from being able to audit the signing event. This issue has been patched in versions 2.6.2 and 3.0.4.","title":"CVE description"}],"product_status":{"known_affected":["SUSE Linux Enterprise Desktop 15 SP6:cosign","SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:cosign","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:cosign","SUSE Linux Enterprise High Performance Computing 15 SP6:cosign","SUSE Linux Enterprise Module for Basesystem 15 SP6: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 15 SP6: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 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Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1256496 for CVE-2026-22703","url":"https://bugzilla.suse.com/1256496"},{"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 SP7:cosign-bash-completion-3.0.5-150400.3.35.1","SUSE Linux Enterprise High Performance Computing 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