CVE-2026-3739
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Lifecycle Timeline
2Description
A security flaw has been discovered in suitenumerique messages 0.2.0. This issue affects the function ThreadAccessSerializer of the file src/backend/core/api/serializers.py of the component ThreadAccess. The manipulation results in improper authentication. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.3.0 is capable of addressing this issue. The patch is identified as d7729f4b885449f6dee3faf8b5f2a05769fb3d6e. The affected component should be upgraded.
Analysis
Improper authentication in suitenumerique messages 0.2.0 allows authenticated remote attackers to bypass access controls on ThreadAccess objects via the ThreadAccessSerializer component, with public exploit code available. The vulnerability affects the serializer logic in src/backend/core/api/serializers.py and can be exploited by users with valid credentials to gain unauthorized access. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Audit authentication configurations.
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External POC / Exploit Code
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