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CVE-2026-102268VulnerabilityPublished Updated

Red Hat Security Advisory: RHTAS 1.5.1 - Release of Model Transparency 1.0.6

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-102268· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical : upgrade Red Hat pyjwt to 2.14.0 as a priority.

Data as of 6 Nov 2026, 05:52 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.14.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade pyjwt to 2.14.0.

Affected software

ProductAffectedFixed in
jpadillapyjwtAffected
  • <2.14.0
Fixed in
  • 2.14.0
PyPIpyjwtpkg:pypi/pyjwtOther threatsAffected
  • <2.14.0
Fixed in
  • 2.14.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Currently, there is no mitigation available that meets Red Hat Product Security criteria for ease of use, applicability, or stability. Deployments should avoid configurations that accept both symmetric and asymmetric signing algorithms simultaneously. Enforcing a single algorithm type or using JSON Web Key sets for token validation prevents exploitation of this vulnerability.

Description

A critical vulnerability exists in PyJWT, a library used for JSON Web Token handling, where improper validation of public keys allows an attacker to forge valid authentication tokens. This occurs when applications accept both symmetric and asymmetric signing algorithms, causing the library to misinterpret asymmetric public keys as symmetric secrets. This flaw enables unauthenticated remote attackers to bypass authentication without the private key. Deployments that enforce a single algorithm type or use JSON Web Key sets are not affected.

References

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