CVE-2026-123848

Missing Host Name Verification in JetBrains IntelliJ IDEA TLS Connections

Published Nov 6, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates

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
First Time appeared Jetbrains
Jetbrains intellij Idea
Vendors & Products Jetbrains
Jetbrains intellij Idea
Type Values Removed Values Added
Title Missing Host Name Verification in JetBrains IntelliJ IDEA TLS Connections
Type Values Removed Values Added
Description In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates
Weaknesses CWE-297
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, 4:55 AM
Reserved
Nov 6, 2026, 4:05 PM
Status
Analyzed
Published
Nov 6, 2026, 5:17 PM
Modified
Nov 10, 2026, 8:10 PM