CVE-2026-49478
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Błąd w Fulcio umożliwia atak SSRF i ujawnienie tokenów ServiceAccount przez nieprawidłowe przekierowania.
CVSS
8.7
EPSS
0.3%
Exploit
none
Vendor
Opis źródłowy (NVD)
Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and attach Kubernetes ServiceAccount tokens during OIDC discovery, allowing a malicious or compromised issuer to perform blind SSRF, substitute and cache malicious JWKS keys, or disclose ServiceAccount tokens to external hosts. Version 1.8.6 blocks cross-host redirects, restricts token injection, and restricts local token loading. No known workarounds are available.
ssrf
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 8.7 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.3% |
| Opublikowano (NVD) | 2026-08-13 13:19:09 UTC |
| Ostatnia modyfikacja (NVD) | 2026-08-15 04:18:21 UTC |
Referencje
- https://github.com/sigstore/fulcio/commit/378c654f48c3bafdced04ead7010aab2cb4c6ca1 (security-advisories@github.com)
- https://github.com/sigstore/fulcio/pull/2354 (security-advisories@github.com)
- https://github.com/sigstore/fulcio/releases/tag/v1.8.6 (security-advisories@github.com)
- https://github.com/sigstore/fulcio/security/advisories/GHSA-f5mr-q85p-6hh6 (security-advisories@github.com)