CVE-2026-82052 — $regexFindAll may crash mongod server when byte-matching multi-byte UTF-8 chars
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 t…
Published: 2026-09-08 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7