CVE-2026-123838

HighCVSS 7.8/10Last modified Nov 10, 2026

Description

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

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-829

Affected software

VendorProductVersions
JetBrainsIntelliJ IDEA< 2026.3

References

Timeline

Published
Nov 6, 2026
Last modified
Nov 10, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-1238394.7In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via the Remote Development port forwardingCVE-2026-123848.8Authorization bypass through User-Controlled key vulnerability in TECHIN2B TECHIN2B Application allows Privilege Abuse. This issue affects CVE-2026-1238404.7In JetBrains IntelliJ IDEA before 2026.3 hTML injection was possible in Remote Development editor tabsCVE-2026-1238417.8In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via symlinks in an imported settings archiveCVE-2026-1238427.1In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archivesCVE-2026-1238433.3In JetBrains IntelliJ IDEA before 2026.3 untrusted projects could trigger changes to GPG agent configurationCVE-2026-1238445.3In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible via custom plugin repositoriesCVE-2026-1238453.3In JetBrains IntelliJ IDEA before 2026.3 path traversal was possible via JSON Schema references in untrusted projectsCVE-2026-1238464.3In JetBrains IntelliJ IDEA before 2026.3 blind SSRF was possible via remote references in JSON Schema validationCVE-2026-1238475.3In JetBrains IntelliJ IDEA before 2026.3 command execution was possible via control characters in terminal command completionCVE-2026-1238487.4In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificatesCVE-2026-1238497.0In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in untrusted projects via the Terraform File Watchers
CVE-2026-123838: High severity, CVSS 7.8 | Vulnix