Improper Verification of Cryptographic Signature Affecting buildkitd package, versions <0.26.0-r1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-BUILDKITD-14001989
  • published15 Nov 2025
  • disclosed6 Aug 2025

Introduced: 6 Aug 2025

CVE-2025-8556  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Chainguard buildkitd to version 0.26.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream buildkitd package and not the buildkitd 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