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TI-2026-56247 Aliases CVE-2026-81526

Cross-database write redirection via unvalidated dotted database name in bulk write namespaces

Priority LOW 31CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

The MongoDB Rust Driver does not neutralize special characters in a caller-supplied target identifier before embedding it in the request it sends to the server. An actor able to influence that identifier in an application using the driver may cause write operations to be applied to an unintended target within the same deployment using the application's own credentials. This may result in unauthorized modification of data belonging to another logical boundary enforced by the application.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00404 34th percentileScored 2026-11-07
Fix Fixed Rust Driver (MongoDB): 3.8.2

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

VendorProductAffected versionsFixed inStatusSource
MongoDBRust Driver3.0.0 to before 3.8.23.8.2Patch availableCNA
  • Rust Driver VendorMongoDB Affected 3.0.0 to before 3.8.2 Fixed in 3.8.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:rust_driver:*:*:*:*:*:mongodb:*:*3.0.0 to before 3.8.2VulnerableMongoDB
  • cpe:2.3:a:mongodb:rust_driver:*:*:*:*:*:mongodb:*:* Versions 3.0.0 to before 3.8.2 Vulnerable ·MongoDB

Remediation

  • Fix · CNA Rust Driver (MongoDB) Fixed in 3.8.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81526

References

Advisory 1

Other 1

  • TI-2025-10720 Configuration may unexpectedly disable certificate validation CVSS 3.1HIGH 8.0
  • TI-2024-05924 Adversarial unsanitized input may cause MongoDB Rust Driver to issue unintended commands. CVSS 3.1HIGH 7.5
  • TI-2026-60049 GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Rust Driver CVSS 4.0MEDIUM 6.1
  • TI-2021-03620 Information disclosure in MongoDB Rust Driver CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences