CVE-2018-12291
UnknownEPSS 1.80%
Last modified
CVE-2018-12291 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.80% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Matrix | Synapse | < 0.31.1 |
References
- https://github.com/matrix-org/synapse/pull/3371Patch, Third Party Advisory
- https://github.com/matrix-org/synapse/releases/tag/v0.31.1Third Party Advisory
- https://github.com/matrix-org/synapse/pull/3371Patch, Third Party Advisory
- https://github.com/matrix-org/synapse/releases/tag/v0.31.1Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-12291?
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.
How severe is CVE-2018-12291?
Severity scoring for CVE-2018-12291 is pending analysis. The EPSS model estimates a 1.80% probability of exploitation in the next 30 days.
How do I fix CVE-2018-12291?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-12291?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST