GHSA-6m87-8wg6-hh8w

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    GHSA-6m87-8wg6-hh8w

    Published: 28 Sept 2026Last Modified: 27 Oct 2026

    Summary: Duplicate Advisory: Authlib: empty signatures validation in JWS JSON deserialization

    Details: ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-6v38-4h7w-rj9h. This link is maintained to preserve external references. ## Original 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-96760, https://github.com/authlib/authlib, https://kb.cert.org/vuls/id/762428, https://www.kb.cert.org/vuls/id/762428

    Affected packages

    Package

    Name: authlib

    Purl: pkg:pypi/authlib

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-6m87-8wg6-hh8w | CVE-DB