# CVE-2026-6811: PHP Stack Exhaustion

> CVE-2026-6811: PHP Stack Exhaustion. CVSS 5.9 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-6811
Last updated: 2026-09-24T17:33:34Z

- Published: 2026-05-14 21:27 UTC · Updated: 2026-09-24 17:33 UTC · Assigner: mongodb
- CVSS: 5.9 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.37%, 30th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-674

## 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.

## Affected vendors and products

- MongoDB Inc.: PHP Driver

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-6811)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-6811)
- [https://jira.mongodb.org/browse/PHPC-2636](https://jira.mongodb.org/browse/PHPC-2636)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-6811 · Markdown: https://rewindex.com/cve/CVE-2026-6811.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-6811 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:48.967Z