Missing Authorization Affecting scorecard package, versions <5.5.0-r7


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

Social Trends
EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-SCORECARD-16969389
  • published28 May 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39831  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Chainguard scorecard to version 5.5.0-r7 or higher.

NVD Description

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

The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.

CVSS Base Scores

version 3.1