Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MongoDB | MongoDB Server | 8.3.0 to before 8.3.11; 8.0 to before 8.0.32; 7.0 to before 7.0.43 | 8.3.11, 8.0.32, 7.0.43 | Patch available | CNA |
- MongoDB Server VendorMongoDB Affected 8.3.0 to before 8.3.11; 8.0 to before 8.0.32; 7.0 to before 7.0.43 Fixed in 8.3.11, 8.0.32, 7.0.43 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* | 7.0.0 to before 7.0.43; 8.0.0 to before 8.0.32; 8.3.0 to before 8.3.11 | Vulnerable | MongoDB |
| cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:* | 9.0.0 alpha0 | Vulnerable | MongoDB |
| cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:* | 9.0.0 alpha1 | Vulnerable | MongoDB |
| cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:* | 9.1.0 alpha0 | Vulnerable | MongoDB |
- cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.43; 8.0.0 to before 8.0.32; 8.3.0 to before 8.3.11 Vulnerable ·MongoDB
- cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:* Versions 9.0.0 alpha0 Vulnerable ·MongoDB
- cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:* Versions 9.0.0 alpha1 Vulnerable ·MongoDB
- cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:* Versions 9.1.0 alpha0 Vulnerable ·MongoDB
Remediation
- Fix · CNA MongoDB Server (MongoDB) Fixed in 8.3.11, 8.0.32, 7.0.43
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89099
- 2026-10-03 Alias added: GHSA-fjcj-f5cf-235q
References
More Mongodb vulnerabilities
- TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
- TI-2013-01669 MongoDB before 2.0.9 and 2.2.x before 2.2.4 does not properly validate requests to the… CVSS 2.0MEDIUM 6.0
- TI-2026-56639 Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service CVSS 4.0HIGH 8.7
- TI-2026-56628 Reachable assertion in MongoDB Server CVSS 4.0HIGH 8.7
- TI-2026-15322 Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos CVSS 4.0HIGH 8.7
- TI-2026-08537 Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2026-89099 · CVE Program
- CVE-2026-89099 · NVD
- FIRST EPSS
- GHSA-fjcj-f5cf-235q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences