CVE-2026-6811 — MEDIUM (5.9)

Vulnerability Description

Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is not MongoDB Server.

CVSS Score

5.9

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-674

References

https://jira.mongodb.org/browse/PHPC-2636

FAQ

What is CVE-2026-6811?

CVE-2026-6811 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is ...

How severe is CVE-2026-6811?

CVE-2026-6811 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6811?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.