Skip to main content
No exploitation reportedAwaiting NVD analysis

CVE-2026-123838

No exploitation reported by the sources we read.

  • Published2026-11-06
  • WeaknessCWE-829

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in Safe Mode via UI Designer form file

Timeline

dates in UTC
  1. 2026-11-0616:10CVE publishedCNA

Versions per branch

Products declared by the CNA

As JetBrains, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • JetBrains IntelliJ IDEAother versions: not affected
    Affected
    • < 2026.3fixed in 2026.3semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-06

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-123838 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2026-11-06
  • CNACVSS 3.17.82026-11-06
  • CNAweakness (CWE)CWE-8292026-11-06
  • NVDweakness (CWE)CWE-829read 2026-11-06

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-11-06
Last Modified
2026-11-06
NVD status
Received

Frequently asked questions

What is CVE-2026-123838?

In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in Safe Mode via UI Designer form file

Is CVE-2026-123838 actively exploited?

Active exploitation of CVE-2026-123838 has not been confirmed.

What is the CVSS score for CVE-2026-123838?

CVE-2026-123838 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record