CVSS v3
7.5
HIGH
EPSS Score
0.5 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2026-09-18
- Last Modified
- 2026-09-19
Frequently asked questions
What is CVE-2026-93761?
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.
Is CVE-2026-93761 actively exploited?
Active exploitation of CVE-2026-93761 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-93761?
CVE-2026-93761 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2026-93761 affecting your environment?
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