CVE-2025-30355
HIGH7.1EPSS 13.2%Synapse vulnerable to federation denial of service via malformed events
發布日:2025/3/27修改日:2026/5/20
描述
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.
受影響套件(2)
- Debian/matrix-synapsefrom 0, < 1.121.0-6
- PyPI/matrix-synapsefrom 0, < 1.127.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-30355
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-30355
- PATCHhttps://github.com/element-hq/synapse
- WEBhttps://github.com/element-hq/synapse/commit/2277df2a1eb685f85040ef98fa21d41aa4cdd389
- WEBhttps://github.com/element-hq/synapse/releases/tag/v1.127.1
- WEBhttps://github.com/element-hq/synapse/security/advisories/GHSA-v56r-hwv5-mxg6