HIGH 7.5 PyPI
Matrix Synapse Security Filtering Flaw
GHSA-v8wm-g9f2-xjv4 · CVE-2018-12291 · PYSEC-2026-664
Published · Modified
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Description
The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2018-12291
- WEB https://github.com/matrix-org/synapse/pull/3371
- WEB https://github.com/matrix-org/synapse/commit/0834b49c6a9b6c597a154d4b2dfcf8fff90699ec
- PACKAGE https://github.com/matrix-org/synapse
- WEB https://github.com/matrix-org/synapse/releases/tag/v0.31.1
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