Authlib (v1.7.2 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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Authlib | Authlib | affected |
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Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 28 Sep 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Authlib (v1.7.2 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. | |
| Title | Authlib library contains a signature‑verification bypass vulnerability | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-09-28T19:37:58.973Z
Reserved: 2026-09-23T15:59:27.145Z
Link: CVE-2026-96760
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses
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