| Name | CVE-2026-103001 |
| Description | PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT._merge_options() method can modify a caller-supplied mutable options mapping when verify_signature is false. If an application reuses that same mapping for a later decode() or decode_complete() call and changes verify_signature to true, the mapping can retain false values for expiration, not-before, issued-at, audience, issuer, subject, and JWT ID checks. A signed token with invalid registered claims can then be accepted without disabling signature verification, but applications that create a fresh options mapping for each call are not affected. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| pyjwt (PTS) | bookworm, bookworm (security) | 2.6.0-1+deb12u1 | vulnerable |
| trixie (security), trixie | 2.10.1-2+deb13u1 | vulnerable | |
| forky | 2.13.0-1 | vulnerable | |
| sid | 2.15.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| pyjwt | source | (unstable) | 2.14.0-1 |
https://github.com/jpadilla/pyjwt/security/advisories/GHSA-gvp8-978c-rx2q
https://github.com/jpadilla/pyjwt/issues/679
Fixed by: https://github.com/jpadilla/pyjwt/commit/0c87c8c8b1a74cac99ad8115f3050efcb7fbed35 (2.14.0)