Vulnerability Details CVE-2026-82052
The $regexFindAll expression can be used by an authenticated user who can run aggregation pipeline stages to crash a MongoDB server (mongod). Under certain specific conditions the regex match can start in the middle of a multi-code-unit character, triggering an assertion during query execution.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 29.3%
CVSS Severity
CVSS v3 Score 6.5