chore(deps): update module github.com/sigstore/timestamp-authority/v2 to v2.1.0 [security] (alauda-v0.70.0) - #178
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This PR contains the following updates:
v2.0.6->v2.1.0Sigstore Timestamp Authority has OOM due to unbounded metric label cardinality in github.com/sigstore/timestamp-authority
CVE-2026-49835 / GHSA-9c54-x2g4-v92j / GO-2026-5851
More information
Details
Sigstore Timestamp Authority has OOM due to unbounded metric label cardinality in github.com/sigstore/timestamp-authority
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
Sigstore Timestamp Authority has OOM due to unbounded metric label cardinality
CVE-2026-49835 / GHSA-9c54-x2g4-v92j / GO-2026-5851
More information
Details
Impact
An unauthenticated remote attacker can trigger unbounded memory growth on the timestamp authority server.
This vulnerability exists because the global
wrapMetricsmiddleware records the raw HTTP request path (r.URL.Path) and raw HTTP request method (r.Method) as Prometheus labels for latency and request count metric vectors. Since this middleware runs before standard routing occurs, it executes for all incoming requests, including those for unmatched paths (yielding 404 responses) or arbitrary request methods. The Prometheus library registers a new, permanent time-series entry for every distinct label combination. An attacker can continuously issue requests containing random paths (e.g.,/api/v1/timestamp/<uuid>) or random HTTP methods to exhaust system memory.Patches
This issue has been patched by limiting the metric label values to a strict allowlist of expected paths (
/ping,/api/v1/timestamp,/api/v1/timestamp/certchain) and expected HTTP methods (GET,POST,HEAD,OPTIONS). Unrecognized paths or methods are normalized to a static string ("unrecognized").Users should update to version
v2.0.7or later.Workarounds
Severity
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Release Notes
sigstore/timestamp-authority (github.com/sigstore/timestamp-authority/v2)
v2.1.0Compare Source
What's Changed
Full Changelog: sigstore/timestamp-authority@v2.0.6...v2.1.0
Configuration
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This PR has been generated by Renovate Bot.