CVE-2026-89099 MongoDB Server - Race Condition

MongoDB Server contains a race condition caused by unsynchronized concurrent operations on internal memory in the document value layer, letting authenticated users with read-write privileges cause memory corruption and server termination, exploit requires authenticated user with read-write access.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service, Data Tampering, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026
Weakness
CWE-362

Vendor fix

Update to the latest MongoDB Server version with the race condition fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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