GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C++ Driver
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C++ Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable.
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
- Fix · CNA C++ Driver (MongoDB) Fixed in 4.5.3
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-88034
- 2026-10-03 Alias added: GHSA-x33j-9628-wvwc
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
Advisory 1
More MongoDB C++ Driver vulnerabilities
- TI-2026-56243 Cross-tenant database retargeting via dot/NUL injection in namespace strings in the C++ Driver CVSS 4.0HIGH 8.6
- TI-2026-58393 Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser CVSS 4.0MEDIUM 5.9
- TI-2026-58389 BSON element injection via NUL-embedded document keys in builder append CVSS 4.0MEDIUM 5.9
Sources
- CVE-2026-88034 · CVE Program
- CVE-2026-88034 · NVD
- FIRST EPSS
- GHSA-x33j-9628-wvwc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-88034 · 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