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CVE-2026-49835

MEDIUM(5.9)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Risk Signal Score25/100 — MITTEL
  • CVSS 5.9 — Mittel
  • Weniger als 24 Stunden alt

Beschreibung

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency and request count metric vectors before routing, allowing an unauthenticated remote attacker to issue requests with random paths such as /api/v1/timestamp/<uuid> or random HTTP methods and create unbounded permanent time-series entries that exhaust memory. This issue is fixed in version 2.1.0.

GitHub Advisories

GHSA-9c54-x2g4-v92jMEDIUM

Sigstore Timestamp Authority has OOM due to unbounded metric label cardinality

go/github.com/sigstore/timestamp-authority/v22.1.0
GitHub Advisory

Referenzen