high
CVE-2026-102268
PyJWT before 2.14.0: is_pem_format does not recognise every PEM representation, so an asymmetric public key reaches HMACAlgorithm.prepare_key as an ordinary secret - anyone holding the published public key can forge a token the library then verifies
- Severity
- high
- Affected product
- PyJWT
- Affected versions
- PyJWT < 2.14.0
- Fixed in
- PyJWT 2.14.0
- Detection basis
- Component version range
- Shipped rule
- PyJWT: PyJWT before 2.14.0: is_pem_format does not recognise every PEM representation, so an asymmetric public key reaches HMACAlgorithm.prepare_key as an ordinary secret - anyone holding the published public key can forge a token the library then verifies
- Added to NewScan
- 2026-09-29
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
COMPONENT VERSION RANGE
NewScan fingerprints PyJWT from its response and reports this CVE when the detected version falls inside the affected range below.
Related CVEs covered by this detection
The same shipped rule and upgrade also cover these identifiers:
References
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