CVE-2025-61672
EPSS 0.05%Synapse's invalid device keys degrade federation functionality
發布日:2025/10/8修改日:2026/5/20
描述
Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.
受影響套件(2)
- Debian/matrix-synapsefrom 0, < 1.139.2-1
- PyPI/matrix-synapsefrom 0, < 1.138.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |
參考連結(11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-61672
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-61672
- PATCHhttps://github.com/element-hq/synapse
- WEBhttps://github.com/element-hq/synapse/commit/26aaaf9e48fff80cf67a20c691c75d670034b3c1
- WEBhttps://github.com/element-hq/synapse/commit/7069636c2d6d1ef2022287addf3ed8b919ef2740
- WEBhttps://github.com/element-hq/synapse/pull/17097
- WEBhttps://github.com/element-hq/synapse/releases/tag/v1.138.3
- WEBhttps://github.com/element-hq/synapse/releases/tag/v1.138.4
- WEBhttps://github.com/element-hq/synapse/releases/tag/v1.139.1
- WEBhttps://github.com/element-hq/synapse/releases/tag/v1.139.2
- WEBhttps://github.com/element-hq/synapse/security/advisories/GHSA-fh66-fcv5-jjfr