CVE-2026-106436

mediumpriority · track · 26EPSS 0.003 · 17 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (17th) EPSS

CVSS 6.5 · medium

Is it mine?

9 products

Check your exposure

Who says so?

2 sources

cert_bund · nvd

EPSS · scored 2026-10-27

The BSON encoder in the MongoDB PHP Driver does not check some return values after a document exceeds libbson's size limit. This can leave the encoder in an invalid state. An unauthenticated actor who can cause an affected application to encode an unusually large data structure can terminate the PHP worker or cause the resulting document to omit fields. No MongoDB server connection or database authentication is required.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 2.5

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Lsecondary · cna@mongodb.comexploitability 2.2 · impact 2.5

v4.06.3mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/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:Xsecondary · cna@mongodb.com

v4.01.7lowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-252US

affected products (9)

Products and version ranges known to be affected.

Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Microsoft Azure Linux azl3all versionscert_bundDEcpe:/o:microsoft:azure_linux:azl3
Open Source MongoDB C# Driverall versionscert_bundDEcpe:/a:mongodb:mongodb:c_driver
Open Source MongoDB Go Driverall versionscert_bundDEcpe:/a:mongodb:mongodb:go_driver
Open Source MongoDB PHP Driverall versionscert_bundDEcpe:/a:mongodb:mongodb:php_driver
Open Source MongoDB libmongocryptall versionscert_bundDEcpe:/a:mongodb:mongodb:libmongocrypt
mongodb php driver1.3.0 → 1.21.1nvdUScpe:2.3:a:mongodb:php_driver:*:*:*:*:*:*:*:*
mongodb php driver2.0.0 → 2.1.11nvdUScpe:2.3:a:mongodb:php_driver:*:*:*:*:*:*:*:*
mongodb php driver2.2.0 → 2.5.4nvdUScpe:2.3:a:mongodb:php_driver:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3830MongoDB Treiber: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen MongoDB Treibern ausnutzen, um einen Denial of Service Angriff durchzuführen und um Daten zu manipulieren.

sources

Which sources assert this record, and when.

cert_bund nvd NVD CVE.org MITRE

published 2026-10-08modified 2026-10-13

references (1) nvd

External citations — patches, advisories, analysis.

https://jira.mongodb.org/browse/PHPC-2739Vendor AdvisoryIssue Tracking

scry

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