CVE-2019-11340
util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on user@bad.example.net@good.example.com returns the user@bad.example.net substring.
- Score
- CVSS 3.0 5.9 Medium
- Status
- Modified - cve@mitre.org
- Published
- 2019-04-19
- Last modified
- 2024-08-04
- Weaknesses
- CWE-20
Affected products
References
- https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc
- https://github.com/matrix-org/sydent/compare/7c002cd...09278fb
- https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/
- https://twitter.com/matrixdotorg/status/1118934335963500545
