What is CVE-2026-123836?

CVE-2026-123836 is a high-severity vulnerability in Jetbrains Datalore, classified under Improper Link Resolution Before File Access. CVSS score: 8.8/10. Published 2026-11-06.

How severe is CVE-2026-123836?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Jetbrains Datalore

CVE-2026-123836

In JetBrains Datalore before 2026.4 workspace collaborators could obtain the owner's SSH private key via Git backup

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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-59 — Improper Link Resolution Before File Access

References

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

Frequently asked questions

What is CVE-2026-123836?: CVE-2026-123836 is a high-severity vulnerability in Jetbrains Datalore, classified under Improper Link Resolution Before File Access. CVSS score: 8.8/10. Published 2026-11-06.
How severe is CVE-2026-123836?: High severity. CVSS v3 base score is 8.8 out of 10.