Is there a public exploit for CVE-2026-123279?

No public exploit for CVE-2026-123279 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-123279?

CVE-2026-123279 scores CVSS 9 (v3.1), rated critical.

What does CVE-2026-123279 affect?

CVE-2026-123279 affects JetBrains Datalore.

9.0 Critical

In JetBrains Datalore before 2026.4 code execution was possible in a notebook's computation by view-only collaborators

CVE-2026-123279

Assessment

CVSS: 9 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 6 November 2026
Last updated: 6 November 2026
Affected: JetBrains · Datalore
Assigner: JetBrains

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

At the source

EUVD (ENISA)

References

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

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