{"id":"CVE-2026-49835","sourceIdentifier":"security-advisories@github.com","published":"2026-07-17T19:17:16.227","lastModified":"2026-10-24T20:10:00.137","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Sigstore Timestamp Authority es un servicio para emitir marcas de tiempo RFC 3161. Antes de la versión 2.1.0, el middleware global wrapMetrics registra la ruta de solicitud HTTP sin procesar r.URL.Path y el método de solicitud HTTP sin procesar r.Method como etiquetas de Prometheus para vectores de métricas de latencia y recuento de solicitudes antes del enrutamiento, permitiendo a un atacante remoto no autenticado emitir solicitudes con rutas aleatorias como /API/v1/timestamp/[uuid] o métodos HTTP aleatorios y crear entradas permanentes de series temporales ilimitadas que agotan la memoria. Este problema se soluciona en la versión 2.1.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"sigstore","product":"timestamp-authority","versions":[{"version":"< 2.1.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-17T19:45:33.792018Z","id":"CVE-2026-49835","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:sigstore_timestamp_authority:*:*:*:*:*:*:*:*","versionEndExcluding":"2.1.0","matchCriteriaId":"7CA61985-9E66-4768-B889-876B7FF88440"}]}]}],"references":[{"url":"https://github.com/sigstore/timestamp-authority/commit/506ec57b6ac2ea1e4739322e47453469425b69b5","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/sigstore/timestamp-authority/releases/tag/v2.1.0","source":"security-advisories@github.com","tags":["Product","Release Notes"]},{"url":"https://github.com/sigstore/timestamp-authority/security/advisories/GHSA-9c54-x2g4-v92j","source":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"]}]}