Denial of service in MongoDB Go Driver via malformed BSON array
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-129 and the CVSS impact.
Summary
The MongoDB Go Driver is affected from 1.1.0 before 1.* and from 2.0.0 before 2.9.2. Improper validation of a BSON array length (CWE-129) causes an out-of-bounds index and a runtime panic in Validate on a malformed four-byte array. An unauthenticated attacker who can supply raw BSON array data to an affected application can crash an unprotected process, causing denial of service. No confidentiality or integrity impact has been identified.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Improper validation of a BSON array length in the MongoDB Go Driver can cause an out-of-bounds index and runtime panic when an application calls bson.RawArray.Validate or bsoncore.Array.Validate on a malformed four-byte array. An unauthenticated actor who can supply raw BSON array data to an affected application may terminate an unprotected application process, causing a denial of service. No confidentiality or integrity impact has been identified.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update MongoDB Go Driver 2.x to version 2.9.2. The sources list no fixed version for MongoDB Go Driver 1.*. Red Hat lists Red Hat Hardened Images as affected with no fix planned.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Go Driver (MongoDB) Fixed in 2.9.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Hardened Images | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-09 Threatist record created from CVE-2026-107325
- 2026-10-16 Affected versions changed · CNA
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
References
More MongoDB Go Driver vulnerabilities
- TI-2026-69716 Integer overflow in MongoDB Go Driver BSON handling causes panic CVSS 4.0HIGH 8.2
- TI-2021-03617 Specific cstrings input may not be properly validated in the Go Driver CVSS 3.1MEDIUM 6.8
- TI-2026-56242 Cross-database write retargeting via unvalidated dotted database name in Client.BulkWrite in the MongoDB Go Driver CVSS 4.0HIGH 7.1
- TI-2026-60056 GridFS data deletion via query-operator injection in file IDs in the MongoDB Go Driver CVSS 4.0MEDIUM 6.1
Sources
- CVE-2026-107325 · CVE Program
- CVE-2026-107325 · NVD
- FIRST EPSS
- CVE-2026-107325 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences