SUSE-SU-2026:22138-1
SUSE-SU-2026:22138-1 · Security update for python-PyJWT
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This update for python-PyJWT fixes the following issues - CVE-2026-48522: `PyJWKClient` passes URI arguments directly to `urllib.request.urlopen()` and allows for SSRF and token forgery (bsc#1266798). - CVE-2026-48523: verifier-side algorithm allow-list bypass when `jwt.decode()` or `jwt.decode_complete()` are called with a PyJWK key (bsc#1266799). - CVE-2026-48524: unlimited processing of JWTs with unknown kid values by `PyJWKClient.get_signing_key()` leads to unbounded JWKS endpoint requests and DoS (bsc#1266800). - CVE-2026-48525: unbounded Base64URL decoding of unused payload segment in `b64=false` detached JWS allows for DoS (bsc#1266801). - CVE-2026-48526: no validation of use of JSON Web Keys in HMAC algorithm when decoding JSON Web Tokens allows for forged HS256 tokens (bsc#1266802).
Fix available
- Published
- Updated
Stack: system
Affected products and versions
python-pyjwt SUSE:Linux Micro 6.1
- Affected ranges
- ECOSYSTEM: < 2.12.1-slfo.1.1_2.1
Update to 2.12.1-slfo.1.1_2.1
Original sources
- https://www.suse.com/support/update/announcement/2026/suse-su-202622138-1/
- https://bugzilla.suse.com/1266798
- https://bugzilla.suse.com/1266799
- https://bugzilla.suse.com/1266800
- https://bugzilla.suse.com/1266801
- https://bugzilla.suse.com/1266802
- https://www.suse.com/security/cve/CVE-2026-48522
- https://www.suse.com/security/cve/CVE-2026-48523
- https://www.suse.com/security/cve/CVE-2026-48524
- https://www.suse.com/security/cve/CVE-2026-48525
- https://www.suse.com/security/cve/CVE-2026-48526
- https://osv.dev/vulnerability/SUSE-SU-2026:22138-1