PyPI/pyjwt CVE-2026-102270: medium 4.4, EPSS 0.21%

PyJWT: ReDoS vulnerability when calling the `is_pem_format` function.

Action: Upgrade pyjwt to 2.14.0 or later.

pip install pyjwt==2.14.0

Affected

Fixed versions

Sources

• osv: GHSA-jwrc-g2q2-pq5p
• https://github.com/jpadilla/pyjwt/security/advisories/GHSA-jwrc-g2q2-pq5p
• https://nvd.nist.gov/vuln/detail/CVE-2026-102270
• https://github.com/jpadilla/pyjwt/commit/8b4e233a22206b34ec1186e912e75c0b2396ac07
• https://github.com/jpadilla/pyjwt
• https://github.com/jpadilla/pyjwt/releases/tag/2.14.0

CVE-2026-102270 · published 2026-09-30T14:40:25Z · modified 2026-10-01T17:55:44.209063147Z · JSON