CVE-2025-30355 (GCVE-0-2025-30355)
Vulnerability from cvelistv5
Published
2025-03-27 00:59
Modified
2025-03-27 13:47
Severity ?
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-20 - Improper Input Validation
Summary
Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known workarounds are available.
References
security-advisories@github.comhttps://github.com/element-hq/synapse/commit/2277df2a1eb685f85040ef98fa21d41aa4cdd389Patch
security-advisories@github.comhttps://github.com/element-hq/synapse/releases/tag/v1.127.1Release Notes
security-advisories@github.comhttps://github.com/element-hq/synapse/security/advisories/GHSA-v56r-hwv5-mxg6Vendor Advisory
Impacted products
Vendor Product Version
element-hq synapse Version: < 1.127.1
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