CVE-2026-18709

Summary

An issue in MongoDB Server could allow an authenticated user with direct network access to a shard to improperly commit or abort an in-progress prepared transaction, bypassing the intended transaction coordination process. This could result in cross-shard data inconsistency, cluster clock corruption, and violation of transaction atomicity guarantees.

Affected Software

VendorProductVersion RangeStatus
MongoDBMongoDB Server8.3.0 < 8.3.8affected
MongoDBMongoDB Server8.0 < 8.0.29affected
MongoDBMongoDB Server7.0 < 7.0.40affected

Weaknesses

  • CWE-862: CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References