Missing Authorization Affecting kubescape package, versions <4.0.8-r6
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.
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- published28 May 2026
- disclosed22 May 2026
Introduced: 22 May 2026
NewCVE-2026-39831 (opens in a new tab)How to fix?
Upgrade Wolfi kubescape to version 4.0.8-r6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kubescape package and not the kubescape 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.