NuytsTech Security

CVE-2019-11340

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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.

Date published : 2019-04-19

https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc

https://github.com/matrix-org/sydent/compare/7c002cd…09278fb

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