Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption (CVE-2026-89099) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89099

Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption

Answer in brief

CVE-2026-89099 records a Unknown severity vulnerability in Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption. The current sources do not mark it as known exploited. The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
MongoDB/MongoDB Servergeneric	>=8.3.0 <8.3.11 \|\| >=8.0 <8.0.32 \|\| >=7.0 <7.0.43	8.3.11, 8.0.32, 7.0.43

Recommended response

Check inventory. Check lockfiles and deployed manifests for MongoDB/MongoDB Server.
Review the reported fix. Update MongoDB/MongoDB Server to 8.3.11 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Source referencejira.mongodb.org

Upstream source description

A race condition in the document value layer of MongoDB Server can allow concurrent server threads to operate on the same internal memory without synchronization, leading to memory corruption. An authenticated user holding ordinary read-write privileges on a database may be able to trigger this condition over the normal client protocol, resulting in server termination and potential corruption of process memory with user-influenced content. Successful use of this issue may impact the confidentiality, integrity, and availability of the affected server process.

Quoted source text, attributed separately from HOL analysis.