Improper Verification of Cryptographic Signature Affecting fence-agents-scsi package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-RHEL10-FENCEAGENTSSCSI-20845819
  • published13 Oct 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-102266  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 fence-agents-scsi.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fence-agents-scsi package and not the fence-agents-scsi package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.from_jwk is affected because PyJWK verification path used the decoded key without applying prepare_key validation. This occurs when a trusted JWK Set contains an oct entry with an empty k value. As a result, an attacker signs an HMAC token with the same zero-length key accepted by PyJWT. Consequently, forged token can carry arbitrary authenticated claims. This issue is fixed in version 2.14.0.

CVSS Base Scores

version 3.1