Is there a public exploit for CVE-2026-123321?

No public exploit for CVE-2026-123321 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-2026-123321?

CVE-2026-123321 scores CVSS 7.8 (v3.1), rated high.

What does CVE-2026-123321 affect?

CVE-2026-123321 affects JetBrains WebStorm.

7.8 High

In JetBrains WebStorm before 2026.3, 2026.2.3 code execution via Grunt and Gulp task loading was possible in untrusted projects

CVE-2026-123321

Assessment

CVSS: 7.8 (v3.1)
Severity: High
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 · WebStorm
Assigner: JetBrains

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

At the source

EUVD (ENISA)

References

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

Community proofs of concept

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