CVE-2019-11340Medium· 5.9▾ SunlitMatrix Sydent mishandles emails
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0.4 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
1.9%
1.9% → 2.0%
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 [email protected]@good.example.com returns the [email protected] substring.
matrix-sydent < 1.0.2Upgrade to a patched release:
matrix-sydent 1.0.2Connected by shared product, vendor, weakness, or advisory.
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CVE-2021-29432Medium· 5.3Malicious users could abuse Sydent to control the content of invitation emails
CVE-2021-29431High· 7.7SSRF in Sydent due to missing validation of hostnames
CVE-2019-11842High· 7.5matrix-sydent and matrix-synapse Use Cryptographically Weak PRNG