AZL-105227

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Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105227.json

JSON Data

https://api.osv.dev/v1/vulns/AZL-105227

Upstream

CVE-2026-102273

Published

2026-09-28T21:17:15Z

Modified

2026-10-02T05:34:59Z

Summary

CVE-2026-102273 affecting package python-jwt 2.13.0-1

Details

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWT HMACAlgorithm.prepare_key is affected because HMAC key guard only recognizes top-level public JWK forms and misses container representations. This occurs when an application allows HMAC and asymmetric algorithms and passes a public JWK container as the raw key. As a result, public asymmetric key material is accepted as the HMAC secret. Consequently, an attacker who knows the public key can forge a token with arbitrary authenticated claims. This issue is fixed in version 2.14.0.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-102273

Affected packages

Azure Linux:3 / python-jwt

Package

Name: python-jwt
Purl: pkg:rpm/azure-linux/python-jwt

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

2.13.0-1

Database specific

source

"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105227.json"