Server-side Request Forgery (SSRF) Affecting github.com/sigstore/fulcio/pkg/config package, versions <1.8.6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Jul 2026
- disclosed7 Jul 2026
- creditUnknown
Introduced: 7 Jul 2026
CVE-2026-49478 Â (opens in a new tab)How to fix?
Upgrade github.com/sigstore/fulcio/pkg/config to version 1.8.6 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the OIDC discovery process. An attacker can cause the service to follow malicious redirects, leading to server-side request forgery and potential exposure of Kubernetes service-account tokens by substituting JWKS endpoints.