Vulnerability in Jetbrains Datalore

CVE-2026-123283

In JetBrains Datalore before 2026.4 account takeover was possible via SSO sign-in to a pre-registered account

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Jetbrains Datalore

Weakness classification (CWE)

CWE-1464

References

www.jetbrains.com/privacy-security/issues-fixed/

Frequently asked questions

What is CVE-2026-123283?: CVE-2026-123283 is a medium-severity vulnerability in Jetbrains Datalore, classified under CWE-1464. CVSS score: 6.8/10. Published 2026-11-06.
How severe is CVE-2026-123283?: Medium severity. CVSS v3 base score is 6.8 out of 10.