VulnerabilityUndergoing Analysis

CVE-2026-82063

A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service.

MEDIUM 6.0EPSS 0.26%

Does this matter?

Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.

Description

A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resource may be retained and subsequently dereferenced during cursor cleanup, leading to a server process crash.

CVSS 4.0: 6.0 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.26% probability · 17th percentile
CISA KEV: Not listed
Weakness: CWE-416
Source: cna@mongodb.com

References

https://jira.mongodb.org/browse/SERVER-131870

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.