CVE-2026-93761

8.7 highEPSS 0.5%

High (8.7) in mongodb mongoid. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

7.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-1333
Published: 2026-09-18
Modified: 2026-09-24
Record from: the NVD, synced 2026-10-19

Affected

mongodb:mongoid

References

https://jira.mongodb.org/browse/MONGOID-5981

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