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CVE-2026-18709

5.9 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.9 · mongodbNVD modified 2026-10-23 21:10

Affected (CPE criteria) 4

  • cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
  • cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:*
  • cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:*
  • cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:*

References 1