CVE-2026-93761Denial of service via unbounded regex matching in Mongoid's in-memory query matcher
Updated under an hour ago ()
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It affects MongoDB Inc. Mongoid. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An inefficient regular expression complexity issue in the in-memory query evaluation component of the Mongoid library may allow an unauthenticated party to cause excessive processing within an embedding application process. Applications that place user-supplied text into a pattern-matching query condition on an embedded association may become unresponsive.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-1333
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Analyzed
- Record last updated
- Sep 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MongoDB Inc. Mongoid mongodb:mongoid (from the name) | from 7.2.0 through 7.2.6; from 7.3.0 through 7.3.5; from 7.4.0 through 7.4.3; from 7.5.0 through 7.5.4; from 7.6.0 through 7.6.1; from 8.0.0 through 8.0.12; from 8.1.0 through 8.1.12; from 9.0.0 through 9.0.11; and 1 more ranges | CNA record |
mongodb mongoid mongodb:mongoid | from 8.0.0 before 8.0.13; from 8.1.0 before 8.1.13; from 9.0.0 before 9.0.12; 9.1.0 | NVD |
References
- https://jira.mongodb.org/browse/MONGOID-5981permissions-required
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.