CVE-2026-82060 (GCVE-0-2026-82060)

Vulnerability from cvelistv5 – Published: 2026-09-08 16:12 – Updated: 2026-09-08 18:10
VLAI
Title
Insufficient Validation of Shard Key Values in MongoDB Server Leads to Query Operator Injection in Change Stream Post-Image Lookups
Summary
In MongoDB, insufficient validation of shard key values during document insertion allowed authenticated users to store documents with specially crafted, operator-shaped objects as shard key values in sharded collections. When change stream events for such documents were processed with the updateLookup full document mode, the crafted values were embedded into internal post-image lookup queries without proper sanitization, causing them to be interpreted as query operators rather than literal equality values. This could result in change stream consumers receiving incorrect post-image documents or encountering non-resumable fatal errors.
Severity
2.3 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:10 UTC
CWE
  • CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Assigner
References
Impacted products
Vendor Product Version
MongoDB MongoDB Server Affected: 8.3.0 , < 8.3.9 (semver)
Affected: 8.0.0 , < 8.0.30 (semver)
Affected: 7.0.0 , < 7.0.41 (semver)
Create a notification for this product.
Show details on NVD website
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