Improper Verification of Cryptographic Signature Affecting rhceph/rhceph-7-rhel9 package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.18% (7th percentile)

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 applications
  • Snyk IDSNYK-RHEL8-RHCEPHRHCEPH7RHEL9-20826203
  • published11 Oct 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-102271  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 rhceph/rhceph-7-rhel9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rhceph/rhceph-7-rhel9 package and not the rhceph/rhceph-7-rhel9 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

PyJWT is a Python implementation of JSON Web Token standards. From 2.4.0 until 2.14.0, PyJWT HMACAlgorithm.prepare_key is affected because asymmetric-key guard relies on textual markers that are absent from DER encoding. This occurs when an application mixes HMAC and asymmetric algorithms and supplies a DER public key as the shared verification key. As a result, PyJWT uses public DER bytes as an HMAC secret. Consequently, an attacker who knows the public key can forge authenticated HMAC tokens. This issue is fixed in version 2.14.0.

CVSS Base Scores

version 3.1