Missing Authorization Affecting slsa-verifier package, versions <2.7.1-r18
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Missing Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-WOLFILATEST-SLSAVERIFIER-17195091
- published5 Jun 2026
- disclosed22 May 2026
Introduced: 22 May 2026
NewCVE-2026-39831 (opens in a new tab)How to fix?
Upgrade Wolfi slsa-verifier to version 2.7.1-r18 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream slsa-verifier package and not the slsa-verifier package as distributed by Wolfi.
See How to fix? for Wolfi 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.