Integer overflow in MongoDB Go Driver BSON handling causes panic
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-190 and the CVSS impact.
Summary
MongoDB Go Driver versions from 1.0.0 before 1.2.0 and from 2.0.0 before 2.9.0 are affected. An integer overflow in BSON value-length handling (CWE-190) can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated attacker who can supply BSON bytes to an affected application can terminate an unprotected application process, causing a denial of service.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.
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
Upgrade the MongoDB Go Driver to version 1.2.0 or 2.9.0, depending on the release line in use. Red Hat Hardened Images is 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 1.2.0, 2.9.0
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-2026-107324
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
References
More MongoDB Go Driver vulnerabilities
- TI-2026-69717 Denial of service in MongoDB Go Driver via malformed BSON array 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-2026-107324 · CVE Program
- CVE-2026-107324 · NVD
- FIRST EPSS
- CVE-2026-107324 · 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