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CVE-2026-6811

🔶 medium
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Summary

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
EPSS Score
0.4
Exploit Probability
Published Date
2026-05-14
First Seen: 2026-05-17
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 32.1% of all 365,863 vulnerabilities in our database.

#248,415
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 15, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-09-24
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Vector 4.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/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
CWE IDs (Weakness Types)

📦 Affected Products 2

🔗 References 1

🔗 Related CVEs 5

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-84968 🔶 medium 5.3 0.2 An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who su... 2026-09-03
CVE-2026-81525 ⚠️ high 8.1 0.5 The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied namespace ide... 2026-08-27
CVE-2025-12119 🔶 medium 6.8 0.2 A mongoc_bulk_operation_t may read invalid memory if large options are passed. 2025-11-18
CVE-2024-7553 ⚠️ high 7.3 0.2 Incorrect validation of files loaded from a local untrusted directory may allow local privilege escalation if the underl... 2024-08-07
CVE-2021-32050 🔶 medium 4.2 0.0 Some MongoDB Drivers may erroneously publish events containing authentication-related data to a command listener configu... 2023-08-29
These CVEs affect the same products