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THREAT OPS › Threat News › [NVD] CVE-2026-48526 (HIGH 7.4) — 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 publ

[NVD] CVE-2026-48526 (HIGH 7.4) — 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 publ

lownvdPublished 2026-05-28

CVE-2026-48526 CVSS: 7.4 HIGH Published: 2026-05-28T16:16:29.657

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 vuln

Indicators of compromise

CVE-2026-48526cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-48526