Skip to content
EXYS
Back to the CVEs

CVE-2026-102267

9.1, critical

Jpadilla pyjwt Exposure of Sensitive Information Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.1, critical critical CVSS v3.1
EPSS, next 30 days
0.2% higher than 4.5% of scored CVEs
Exploitation
No public evidence
Published
28 Sept 202619 days ago

Description

PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT PyJWKClient is affected because redirect destinations are not revalidated against the JWKS trust boundary. This occurs when a configured trusted JWKS endpoint returns an attacker-influenced redirect. As a result, PyJWKClient follows the redirect and consumes the redirected response as key material. Consequently, forwarded credentials may be disclosed or verification keys may be substituted. This issue is fixed in version 2.14.0.

Details

Vendor
Jpadilla
Product
pyjwt
Weakness
CWE-200 (opens in a new tab)
Status
Analyzed
Updated
7 Oct 2026
Assigner
security-advisories@github.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References 3

Patches and fixes 2

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Jpadilla CVEs

Every Jpadilla CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-102266 PyJWT is a Python implementation of JSON Web Token standards EPSS 0.2% 9.1, critical
  • CVE-2026-101917 Jpadilla pyjwt Allocation of Resources Without Limits or Throttling Vulnerability EPSS 0.4% 7.5, high
  • CVE-2026-101918 PyJWT is a Python implementation of JSON Web Token standards EPSS 0.4% 7.5, high
  • CVE-2026-102274 PyJWT is a Python implementation of JSON Web Token standards EPSS 0.4% 7.5, high
  • CVE-2026-102275 PyJWT is a Python implementation of JSON Web Token standards EPSS 0.1% 8.2, high

Beyond this page

Is CVE-2026-102267 in your network?

This page tells you how dangerous CVE-2026-102267 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-102267 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.