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CVE-2026-102275VulnerabilityPublished Updated

From 2.1.0 until 2.15.0, PyJWT OKPAlgorithm.from_jwk

Affects pyjwtSource GCVE Database

0
Authoritative record:CVE-2026-102275· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium · fixed in 2.3.0-1ubuntu0.6 : update pyjwt when convenient.

Data as of 27 Oct 2026, 14:29 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.3.0-1ubuntu0.6, 2.7.0-1ubuntu0.4, 2.13.0-1ubuntu1.1 +1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.10pyjwtpkg:deb/ubuntu/pyjwt?arch=source&distro=stonkingOther threatsAffected
  • <2.13.0-1ubuntu1.1
Fixed in
  • 2.13.0-1ubuntu1.1
Ubuntu 26.04 LTSpyjwtpkg:deb/ubuntu/pyjwt?arch=source&distro=resoluteOther threatsAffected
  • <2.10.1-4ubuntu1.3
Fixed in
  • 2.10.1-4ubuntu1.3
Ubuntu 24.04 LTSpyjwtpkg:deb/ubuntu/pyjwt?arch=source&distro=nobleOther threatsAffected
  • <2.7.0-1ubuntu0.4
Fixed in
  • 2.7.0-1ubuntu0.4
Ubuntu 22.04 LTSpyjwtpkg:deb/ubuntu/pyjwt?arch=source&distro=jammyOther threatsAffected
  • <2.3.0-1ubuntu0.6
Fixed in
  • 2.3.0-1ubuntu0.6

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

AI-suggested

A fix is available and users should update PyJWT to version 2.15.0 or later. Ubuntu users should upgrade to the fixed package versions: 2.3.0-1ubuntu0.6, 2.7.0-1ubuntu0.4, 2.10.1-4ubuntu1.3, or 2.13.0-1ubuntu1.1 depending on their distribution. Standard system updates will apply these fixes. No additional mitigation is required if the update is applied.

Description

PyJWT versions from 2.1.0 up to 2.15.0 contain a vulnerability in the OKPAlgorithm.from_jwk function where the private-JWK import path does not verify that the public key component 'x' corresponds to the private key component 'd'. This flaw allows an attacker to misuse a stolen sender-constrained token without possessing the legitimate private key if the integration accepts private key parameters from a proof header. The issue is fixed in version 2.15.0.

References

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