Source: rekor Version: 1.4.3-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for rekor. CVE-2026-23831[0]: | Rekor is a software supply chain transparency log. In versions 1.4.3 | and below, the entry implementation can panic on attacker-controlled | input when canonicalizing a proposed entry with an empty | spec.message, causing nil Pointer Dereference. Function validate() | returns nil (success) when message is empty, leaving sign1Msg | uninitialized, and Canonicalize() later dereferences | v.sign1Msg.Payload. A malformed proposed entry of the cose/v0.0.1 | type can cause a panic on a thread within the Rekor process. The | thread is recovered so the client receives a 500 error message and | service still continues, so the availability impact of this is | minimal. This issue has been fixed in version 1.5.0. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-23831 https://www.cve.org/CVERecord?id=CVE-2026-23831 [1] https://github.com/sigstore/rekor/security/advisories/GHSA-273p-m2cw-6833 [2] https://github.com/sigstore/rekor/commit/39bae3d192bce48ef4ef2cbd1788fb5770fee8cd Please adjust the affected versions in the BTS as needed. Regards, Salvatore
