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CVE-2026-32597VulnerabilityPublished

Red Hat Security Advisory: python-jwt security update

Affects Red Hat python-jwtSource GCVE Database

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Authoritative record:CVE-2026-32597· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat pyjwt to 2.12.0 soon.

Data as of 9 Nov 2026, 02:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.12.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Mar 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 8 Nov 2026.

What to do

Upgrade pyjwt to 2.12.0.

Affected software

ProductAffectedFixed in
jpadillapyjwtAffected
  • <2.12.0
Fixed in
  • 2.12.0
PyPIpyjwtpkg:pypi/pyjwtOther threatsAffected
  • <2.12.0
Fixed in
  • 2.12.0

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

AI-suggested

Red Hat has released an updated python-jwt package (version 1.5.3-1.el7_9.1) for Red Hat Enterprise Linux 7 Extended Lifecycle Support that addresses this vulnerability. Users should apply this update following the guidance in the Red Hat advisory article (https://access.redhat.com/articles/11258). No additional mitigation steps are indicated beyond applying the official patch.

Description

A security vulnerability in the Python JWT library (pyjwt) was identified where it accepts unknown 'crit' header extensions, violating RFC 7515 section 4.1.11. This issue is tracked as CVE-2026-32597 and affects certain Red Hat Enterprise Linux 7 Extended Lifecycle Support packages. The vulnerability has been rated as having an important security impact by Red Hat. A security update is available to address this issue.

References

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