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Description

An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

PUBLISHED Reserved 2026-05-08 | Published 2026-05-13 | Updated 2026-05-13 | Assigner mongodb




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-1325: Improperly Controlled Sequential Memory Allocation

Product status

Default status
unaffected

7.0 (custom) before 7.0.34
affected

8.0 (custom) before 8.0.23
affected

8.2 (custom) before 8.2.9
affected

8.3 (custom) before 8.3.2
affected

References

jira.mongodb.org/browse/SERVER-122449 issue-tracking

cve.org (CVE-2026-8199)

nvd.nist.gov (CVE-2026-8199)

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