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TI-2026-84478 Aliases CVE-2026-120953

Atlas SQL JDBC Driver OIDC endpoints open attacker-chosen URIs via OS handler

Priority LOW 23CWE-601Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

MongoDB Atlas SQL JDBC Driver from 2.1.2 before 4.0.1 accepts endpoint addresses during interactive sign-in without validating their scheme and passes them to the local default protocol handler. This is a URL redirection weakness (CWE-601). An unauthenticated remote party that controls the endpoint a user chooses to connect to can cause an address of its choosing to be opened on the user's system, but user interaction is required.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A URI redirection weakness exists in the authentication component of the Atlas SQL JDBC Driver. During an interactive sign-in flow the driver accepts endpoint addresses supplied by the remote endpoint it is pointed at without validating their scheme, and passes the resulting address to the local default protocol handler. An unauthenticated remote party that controls the endpoint a user elects to connect to may cause an address of its choosing to be opened on the user's system; user interaction is required.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00243 15th percentileScored 2026-11-07
Fix Fixed Atlas SQL JDBC Driver (MongoDB): 4.0.1

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
MongoDBAtlas SQL JDBC Driver2.1.2 to before 4.0.14.0.1Patch availableCNA
  • Atlas SQL JDBC Driver VendorMongoDB Affected 2.1.2 to before 4.0.1 Fixed in 4.0.1 Patch available CNA

Remediation

Upgrade MongoDB Atlas SQL JDBC Driver to version 4.0.1, which is the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA Atlas SQL JDBC Driver (MongoDB) Fixed in 4.0.1

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-120953
  2. 2026-11-03 CISA SSVC decision points changed

References

Other 2

  • 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

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