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CVE-2026-102268VulnerabilityPublished Updated

Red Hat Security Advisory: RHTAS 1.4.5 - Release of Model Transparency 1.0.7

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 13 Nov 2026, 14:36 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 13 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, no effective mitigation or patch is available that meets Red Hat's standards for ease of deployment and applicability. Users should avoid configuring token verification to accept both symmetric and asymmetric algorithms simultaneously. Deployments that strictly enforce a single algorithm type or validate tokens using JSON Web Key sets remain unaffected.

Description

A critical vulnerability (CVE-2026-102268) exists in PyJWT used by Red Hat Trusted Artifact Signer (RHTAS) Model Transparency CLI image. The flaw allows an attacker to bypass authentication by exploiting improper public key validation when both symmetric and asymmetric signing algorithms are accepted. This can enable forging of valid authentication tokens without the private key. The vulnerability affects deployments that accept both algorithm types simultaneously and mishandle asymmetric public keys as symmetric secrets.

References

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