Medium 5.9Published May 14, 2026

CVE-2026-6811PHP Stack Exhaustion

Updated under an hour ago (Oct 26, 2026, 11:40 PM ET)

Does this affect you?

It affects MongoDB Inc. PHP Driver. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for MongoDB Inc. PHP Driver

Exploited in the last 30 days

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: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mongodb
NVD analysis: Analyzed
Record last updated: May 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MongoDB Inc. PHP Driver mongodb:php_driver (from the name)	1.21.5; 2.1.8	CNA record
mongodb php_driver mongodb:php_driver	from 1.21.0 before 1.21.5; from 2.1.0 before 2.1.8	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.