Authlib
Library contains a signature‑verification bypass vulnerability
Not on CISA's list of exploited flaws, and not in the news we track.
CVE-2026-96760Critical9.8
Black Shard's team can check your exposure to CVE-2026-96760 and take the fix off your plate.
Authlib (v1.8.0 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key.
Black Shard's team can check your exposure, take a fix off your plate or step in on a live incident.
Chance of exploitation in the next 30 days
0.43%
EPSS score from FIRST
Updated 13 Nov 2026, 11:28 UTC, 30 of 36 sources answering.
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