← back
CVE-2026-9747highCWE-617

Crafted cross-shard merge aggregation crashes MongoDB Server

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.3%
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
Adding fromRouter:true and runtimeConstants.userRoles could cause aggregations to crash mongodb server.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
MongoDB · MongoDB Server