golang-github-sigstore-timestamp-authority: Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps
CVE-2025-66564 is fixed in 6 products on 1 platform, first by DEBIAN-CVE-2025-66564, released December 4, 2025. It is not reported as exploited. Patch Radar priority: High.
Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.0.3, Function api.ParseJSONRequest currently splits (via a call to strings.Split) an optionally-provided OID (which is untrusted data) on periods. Similarly, function api.getContentType splits the Content-Type header (which is also untrusted data) on an application string. As a result, in the face of a malicious request with either an excessively long OID in the payload containing many period characters or a malformed Content-Type header, a call to api.ParseJSONRequest or api.getContentType incurs allocations of O(n) bytes (where n stands for the length of the function's argument). This vulnerability is fixed in 2.0.3.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| golang-github-sigstore-timestamp-authority · Debian 14 | 2.0.3-1 | DEBIAN-CVE-2025-66564 | Dec 4, 2025 |
| govulncheck-vulndb · opensuse-leap 15.6 | 0.0.20251209T172047-150000.1.127.1 | SUSE-SU-2025:4395-1 | Dec 15, 2025 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
| govulncheck-vulndb · sles 15.6 | 0.0.20251209T172047-150000.1.127.1 | SUSE-SU-2025:4395-1 | Dec 15, 2025 |
| runfinch-finch · amzn 2023 | 1.10.0-1.amzn2023.0.6 | ALAS2023-2025-1336 | Jan 7, 2026 |
| trivy · Fedora 43 | 0.69.3-1.fc43 | FEDORA-2026-868E266938 | Apr 4, 2026 |
| trivy-debuginfo · Fedora 43 | 0.69.3-1.fc43 | FEDORA-2026-868E266938 | Apr 4, 2026 |
| trivy-debugsource · Fedora 43 | 0.69.3-1.fc43 | FEDORA-2026-868E266938 | Apr 4, 2026 |
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