Vulnerability details
CVE-2024-52815
element-hq synapse
Synapse allows a a malformed invite to break the invitee's `/sync`
CVSS 4.0
8.7High
Official description
Synapse is an open-source Matrix homeserver. Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. Synapse 1.120.1 rejects such invalid invites received over federation and restores the ability to sync for affected users.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| element-hq | synapse | v < 1.120.1 | CISA ADP / Vulnrichment |
| element-hq | synapse | < 1.120.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/element-hq/synapse/security/advisories/GHSA-f3r3-h2mq-hx2h x_refsource_CONFIRM
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Details
- Published
- 2024-12-03
- Last updated
- 2024-12-03
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-20Improper Input Validation