Research / Finding
COSE v0.0.1 entry type nil pointer dereference in Canonicalize via empty Message F-SIG-038-001
Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.
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Recorded evidence
5.3medium
COSE v0.0.1 entry type nil pointer dereference in Canonicalize via empty Message
Fixed in: rekor 1.5.0
patched
details
Finding IDs F-SIG-038-001 CVE CVE-2026-23831 GHSA GHSA-273p-m2cw-6833 Status patched Fixed in rekor 1.5.0 CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE registry state PUBLISHED CVE state checked 23 Sep 2026 Upstream title COSE v0.0.1 entry type nil pointer dereference in Canonicalize via empty Message Upstream CWE CWE-476 Upstream publication 22 Jan 2026 Upstream updated 22 Jan 2026 Metadata fetched 23 Sep 2026 Upstream @1seal credit @1seal: reporter (accepted) F-SIG-038-001: Input / state handling. An empty COSE message reaches a nil dereference. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.
Mechanism source for F-SIG-038-001
Security area (1seal assessment): Availability. An empty COSE message reaches a nil dereference. Reviewed 24 Sep 2026.
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