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PyJWT: Public keys in DER form are accepted as HMAC secrets, bypassing the CVE-2022-29217 guard

🗓️ 29 Sep 2026 23:14:33Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 33 Views

PyJWT accepts DER public keys as HMAC secrets, enabling key confusion.

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pyjwt_projectpyjwtRange2.4.0–2.14.0pip

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29 Sep 2026 23:14Current
7High risk
Vulners AI Score7
CVSS 25
CVSS 3.17.4 - 7.5
EPSS0.01355
SSVC
33