Signals
Back to database
Soon59Medium5.9VulnerabilityCVE-2026-106431No patch link observed

CVE-2026-106431 — An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a docu…

Published Oct 8, 2026, 07:16 PM UTCIngested 6h agoSource NVD(cve-db)CVE-2026-106431

Description

An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a document ends at a specific buffer boundary. An actor who can influence the size of documents serialized by an embedding application can corrupt adjacent process memory or terminate the process. Reaching this issue requires the application to use the BSON bulk-writer API and produce a precise cumulative document size.

CVSS v4.0 base metrics

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/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
5.9

Medium severity

Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.

AV

Local

Attack Vector

AC

Low

Attack Complexity

AT

Present

Attack Requirements

PR

None

Privileges Required

UI

None

User Interaction

VC

None

Confidentiality (Vulnerable System)

VI

Low

Integrity (Vulnerable System)

VA

High

Availability (Vulnerable System)

SC

None

Confidentiality (Subsequent System)

SI

None

Integrity (Subsequent System)

SA

None

Availability (Subsequent System)

References

Related threats

same CWE or vendor
Medium

CVE-2026-12109 — IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow an attacker with administrative pri…

CVE-2026-12109 · 4h ago

Critical

CVE-2026-14992 — IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 vulnerable to bu…

CVE-2026-14992 · 10h ago

High

CVE-2026-14507 — IBM DataPower Gateway 11.0.0.0 through 11.0.0.2 could allow a remote authenticated attacker to cause a denial of service due to improper memory all…

CVE-2026-14507 · 10h ago

High

CVE-2026-16167 — IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a re…

CVE-2026-16167 · 11h ago

High

CVE-2026-16164 — IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a re…

CVE-2026-16164 · 11h ago

High

CVE-2026-16163 — IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a re…

CVE-2026-16163 · 11h ago