7.4
High
CVE-2026-48526 PyJWT is a JSON Web Token implementation in Python
Description
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer public key as the secret key for HMAC algorithm. This vulnerability is fixed in 2.13.0.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| pyjwt 2.13 | earliest → < 2.13.0 | 2.13.0 |
| Red Hat Enterprise Linux AppStream (v. 10) | Versions not published | |
| Red Hat Enterprise Linux AppStream (v. 9) | Versions not published | |
| Red Hat AI Inference Server 3.3 1782352847 | earliest → < 1782352847 | 1782352847 |
| Red Hat Ansible Automation Platform 2.7 1785435970 | earliest → < 1785435970 | 1785435970 |
| Red Hat Quay 3.12 1781937357 | earliest → < 1781937357 | 1781937357 |
| Red Hat Quay 3.9 1781878070 | earliest → < 1781878070 | 1781878070 |
| Migration Toolkit for Applications 8 | Versions not published | |
| OpenShift Lightspeed | Versions not published |
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References
- github.com github.com
Timeline
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