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CVE-2026-13077

7.1 high SSVC exploitation: none Analyzed
NVD · CVE.org

A missing bounds check in the BSON CodeWScope element accessors allows an attacker to trigger an out-of-bounds heap read via a crafted aggregation pipeline. The vulnerability can be exploited by an authenticated user by generating a malformed BSONColumn data containing a CodeWScope element, bypassing wire-level BSON validation. When the forged element is decompressed, the unchecked size value is used in pointer arithmetic, causing either a server crash or disclosure of adjacent heap memory contents.

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 7.1 · mongodbNVD modified 2026-10-24 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*

References 1