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USN-8133-1: PyJWT vulnerability

🗓️ 30 Mar 2026 15:02:33Reported by UbuntuType 
ubuntu
 ubuntu🔗 ubuntu.com👁 5 Views

PyJWT fails to validate a critical header parameter, allowing remote attackers to bypass authentication checks.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04anypython-jwt1.3.0-1ubuntu0.1+esm1python-jwt_1.3.0-1ubuntu0.1+esm1_any.deb
Ubuntu18.04anypython-jwt1.5.3+ds1-1ubuntu0.1+esm1python-jwt_1.5.3+ds1-1ubuntu0.1+esm1_any.deb
Ubuntu25.10amd64python-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_amd64.deb
Ubuntu25.10amd64v3python-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_amd64v3.deb
Ubuntu25.10arm64python-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_arm64.deb
Ubuntu25.10armhfpython-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_armhf.deb
Ubuntu25.10i386python-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_i386.deb
Ubuntu25.10ppc64elpython-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_ppc64el.deb
Ubuntu25.10riscv64python-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_riscv64.deb
Ubuntu25.10s390xpython-jwt-doc2.10.1-2ubuntu0.1python-jwt-doc_2.10.1-2ubuntu0.1_s390x.deb
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30 Mar 2026 15:02Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00014
SSVC
pyjwtheader parameterauthentication bypassremote attackervulnerability
5