CVE-2026-82060
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.
Scoring
- Severity
- LOW
- CVSS base score
- 5.4
- CVSS vector
- 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
- EPSS probability
- 0.24%
- CWE
- CWE-943
- Published
- 2026-09-08
- Last modified
- 2026-09-08
Affected products
- MongoDB MongoDB Server
- MongoDB MongoDB Server
- MongoDB MongoDB Server
Weakness type
Related vulnerabilities
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- CVE-2026-88034 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C++ Driver
- CVE-2026-88033 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Java Driver
- CVE-2026-88031 — GridFS data deletion via query-operator injection in file IDs in the MongoDB Go Driver
- CVE-2026-88030 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Ruby Driver
- CVE-2026-88029 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Python Driver
- CVE-2026-88028 — Unauthorized document disclosure via query-operator injection in polymorphic relation identifiers in MongoDB integration for Laravel
- CVE-2026-88027 — Mass deletion and overwrite of embedded documents via query-operator injection in embedded record keys in MongoDB integration for Laravel