VULNERABILITY INTELLIGENCE

CVE-2026-9753

CVSS score7.2 HIGH
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-06-09
Last modified2026-07-23
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N

Description

The $_internalApplyOplogUpdate aggregation pipeline stage can be used to execute a document diff containing a malformed binary diff to return memory out-of-bounds or crash the server. $_internalApplyOplogUpdate can be executed by any authenticated user with access to the aggregate command.

Weakness classification

  • CWE-787: Out-of-bounds Write
  • CWE-1287: Improper Validation of Specified Type of Input

Primary references