Missing Authorization Affecting nerdctl package, versions <0:2.2.2-1.amzn2.0.3


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-AMZN2-NERDCTL-17286479
  • published10 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

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

How to fix?

Upgrade Amazon-Linux:2 nerdctl to version 0:2.2.2-1.amzn2.0.3 or higher.
This issue was patched in ALAS2-2026-3334.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nerdctl package and not the nerdctl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.