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mongorestore may restore encoded collection names into an unintended collection

Priority LOW 10CWE-174Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

MongoDB Database Tools mongorestore incorrectly URL-decodes an original collection name read from metadata when the corresponding dump filename has been truncated. A database user who can create and populate a suitably encoded collection can cause a later authorized directory restore to write those documents into a different collection that the user cannot modify directly. When both collection names resolve to the same destination, backed-up documents may be omitted; use of --drop can also replace the unintended destination collection. Exploitation requires an operator to restore the affected collection from a directory dump with write access to the destination. This issue affects MongoDB Database Tools versions 100.0.2 through versions before 100.20.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00163 5th percentileScored 2026-11-07
Fix Partial Database Tools (MongoDB): 100.20.1Red Hat: 1 without a fix

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
MongoDBDatabase Tools100.0.2 to before 100.20.1100.20.1Patch availableCNA
  • Database Tools VendorMongoDB Affected 100.0.2 to before 100.20.1 Fixed in 100.20.1 Patch available CNA

Remediation

  • Fix · CNA Database Tools (MongoDB) Fixed in 100.20.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MongoDB Database Tools 100.20.1

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-84396 mongofiles may disclose GridFS content via stored filenamePriority LOW 26
    • TI-2026-84398 Collection guard bypass in MongoDB Database Tools mongorestorePriority LOW 25
    • TI-2026-84397 MongoDB mongofiles symlink flaw writes files outside working directoryPriority LOW 6

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ceph Storage 9AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-119674
  2. 2026-11-03 CISA SSVC decision points changed
  3. 2026-11-03 Alias added: GHSA-px68-pqg4-8q7x
  4. 2026-11-07 Affected versions changed · Red Hat
  5. 2026-11-07 CVSS score added · Red Hat

References

  • TI-2019-08023 Code injection in mongo-express KEVCVSS 3.1CRITICAL 9.9
  • TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
  • TI-2026-79432 BSON output corruption via out-of-range binary subtype in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
  • TI-2026-79424 NoSQL command injection via mismatched BSON length in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
  • TI-2026-79422 Unbounded memory growth in MongoDB C# Driver BSON deserialization CVSS 4.0HIGH 8.2
  • TI-2026-79427 Authentication bypass via issuer-and-serial-only certificate equality CVSS 4.0HIGH 7.6
See all 376 →

Sources