This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-101917 →

DEBIAN-CVE-2026-101917

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 f...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 pyjwt

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 pyjwt

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 pyjwt

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.0-1"}]}]

References

advisory security-tracker.debian.org