CVE-2026-6914

7.1 HIGH 0.3% exploit odds Fix listed Other Server

What it is

Computing the MD5 checksum of a malformed BSON object under specific conditions may cause loss of availability in MongoDB server. This issue affects all MongoDB Server v8.2 versions, all MongoDB Server v8.1 versions, MongoDB Server v8.0 versions prior to 8.0.21, MongoDB Server v7.0 versions prior to 7.0.32

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-04-29 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-26 20:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-04-29 17:16 UTC
Last modified: 2026-10-26 20:10 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-191
Record status: Analyzed

Affected

Mongodb < 7.0.32
Mongodb < 8.0.21
Mongodb < 8.2.7

Attack profile CVSS 4.0 · 7.1

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: Low
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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Fix and advisories

https://jira.mongodb.org/browse/SERVER-119981

References

https://jira.mongodb.org/browse/SERVER-119981

NVD record · CVE.org record