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Case File

CVE-2018-12291

HIGH · CVSS 7.5 EPSS 1.80% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-06-13 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-12291
Severity
HIGH
CVSS
7.5
EPSS
1.80%

Original NVD 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.