Description
SimpleXMQ before 3.4.0, as used in SimpleX Chat before 4.2, does not apply a key derivation function to intended data, which can interfere with forward secrecy and can have other impacts if there is a compromise of a single private key. This occurs in the X3DH key exchange for the double ratchet protocol.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0Release Notes, Third Party Advisory
- https://github.com/simplex-chat/simplexmq/pull/548Patch, Third Party Advisory
- https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdfExploit, Technical Description, Third Party Advisory
- https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.htmlRelease Notes, Vendor Advisory
- https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0Release Notes, Third Party Advisory
- https://github.com/simplex-chat/simplexmq/pull/548Patch, Third Party Advisory
- https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdfExploit, Technical Description, Third Party Advisory
- https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Nov 12, 2022
- Last modified
- Jun 17, 2026
- NVD status
- Modified