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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.1
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/R:A
- EPSS probability
- 0.36%
- CWE
- CWE-617
- Published
- 2026-09-08
- Last modified
- 2026-09-08
Affected products
- MongoDB MongoDB Server
- MongoDB MongoDB Server
- MongoDB MongoDB Server
Weakness type
Related vulnerabilities
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