What is CVE-2026-48526?

CVE-2026-48526 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed

Which CVE IDs does CVE-2026-48526 cover?

CVE-2026-48526 covers the following CVE IDs: CVE-2026-48526. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-48526?

CVE-2026-48526 has a CVSS v3 base score of 7.4, published by Microsoft Security Response Center (MSRC).

CVE-2026-48526HighCVSS 7.4

PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed

Vendor

Microsoft Security Response Center (MSRC)

Published

July 27, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-48526 →