CVE-2026-123306

Insecure Server Certificate Addition During Headless IDE Runs

Published Nov 6, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
In JetBrains IntelliJ IDEA before 2026.3 improper checks allowed server certificates to be added to the trust store during headless runs

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Insecure Server Certificate Addition During Headless IDE Runs
Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains intellij Idea
Vendors & Products Jetbrains
Jetbrains intellij Idea
Type Values Removed Values Added
Description In JetBrains IntelliJ IDEA before 2026.3 improper checks allowed server certificates to be added to the trust store during headless runs
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Nov 7, 2026, 6:26 PM
Reserved
Nov 5, 2026, 6:38 PM
Status
Analyzed
Published
Nov 6, 2026, 11:17 AM
Modified
Nov 10, 2026, 7:41 PM