CVE-2026-123281: high-severity vulnerability in JetBrains Datalore
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
In JetBrains Datalore before 2026.4 notebook code could execute commands in the sidecar container via the mount broker
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
JetBrains · DataloreRelated CVEs — JetBrains Datalore
In the same product, most dangerous first.