PyPI/pyjwt CVE-2026-102268: critical 9.1, EPSS 0.20%

PyJWT: Asymmetric-PEM detection bypass: whitespace/line-ending-mutated public keys skip the HS/asymmetric confusion guard

Action: Upgrade pyjwt to 2.14.0 or later.

pip install pyjwt==2.14.0

Affected

Fixed versions

Sources

• osv: PYSEC-2026-4145
• https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffc3-869f-jxw9
• https://nvd.nist.gov/vuln/detail/CVE-2026-102268
• https://github.com/jpadilla/pyjwt/commit/8b4e233a22206b34ec1186e912e75c0b2396ac07
• https://github.com/jpadilla/pyjwt
• https://github.com/jpadilla/pyjwt/releases/tag/2.14.0
• https://pypi.org/project/pyjwt
• https://github.com/advisories/GHSA-ffc3-869f-jxw9

CVE-2026-102268 · published 2026-10-01T16:38:40.589286Z · modified 2026-10-01T17:45:17.856341315Z · JSON