Improper Validation of Specified Type of Input Affecting cosign-fips package, versions <2.5.0-r4


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-COSIGNFIPS-14886576
  • published7 Jan 2026
  • disclosed6 Aug 2025

Introduced: 6 Aug 2025

CVE-2025-8556  (opens in a new tab)
CWE-1287  (opens in a new tab)

How to fix?

Upgrade Chainguard cosign-fips to version 2.5.0-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cosign-fips package and not the cosign-fips package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.

CVSS Base Scores

version 3.1