CVE-2026-101917Medium· 5.3▾ TwilightPoC availablePyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT get_signing_key_from_jwt is affected because unknown kid misses force refreshes without a negative cache or minimum refresh interval. This occurs when u…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 29.2 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
0.4% → 0.4%
PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT get_signing_key_from_jwt is affected because unknown kid misses force refreshes without a negative cache or minimum refresh interval. This occurs when unauthenticated tokens repeatedly use the same unknown kid or varying kid values absent from the cached JWKS. As a result, each cache miss causes PyJWKClient to refresh the JWKS. Consequently, attacker traffic can amplify outbound requests to the configured JWKS endpoint. This issue is fixed in version 2.14.0.
pyjwt < 2.14.0Upgrade past the affected range:
pyjwt 2.14.0Affected packages:
pyjwt <= 2.13.0Patched in:
pyjwt 2.14.0Source: https://github.com/advisories/GHSA-2gx3-rcp4-g85q
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-103001Medium· 6.5PyJWT is a Python implementation of JSON Web Token standards
CVE-2026-102274Medium· 5.9PyJWT is a Python implementation of JSON Web Token standards
CVE-2026-102275Medium· 6.5PyJWT is a Python implementation of JSON Web Token standards
CVE-2026-102270Medium· 4.4PyJWT is a Python implementation of JSON Web Token standards
CVE-2026-102271High· 7.4PyJWT is a Python implementation of JSON Web Token standards
CVE-2026-102272High· 7.4PyJWT is a Python implementation of JSON Web Token standards