Server-Side Request Forgery (SSRF) Affecting runfinch-finch package, versions <0:1.17.2-1.amzn2023.0.3


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-AMZN2023-RUNFINCHFINCH-18531835
  • published5 Aug 2026
  • disclosed13 Aug 2026

Introduced: 5 Aug 2026

CVE-2026-49478  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 runfinch-finch to version 0:1.17.2-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-2023.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runfinch-finch package and not the runfinch-finch package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1