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CVE-2026-48526

HIGH · CVSS 7.4 EPSS 0.23% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-28 · Last synced: 2026-06-27

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-48526
Severity
HIGH
CVSS
7.4
EPSS
0.23%

Original NVD 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.