High · 7.8 CVE-2026-123276 EUVD-2026-118041GHSA-2mx7-r465-v8vj

In JetBrains CLion before 2026.3, 2026.2.4.1 code execution was possible in Safe Mode via a crafted GDB server debug profile

Published Nov 6, 2026 · Updated Nov 7, 2026 · Assigned by JetBrains

Vendor: JetBrains Product: CLion

Description

In JetBrains CLion before 2026.3,
2026.2.4.1 code execution was possible in Safe Mode via a crafted GDB server debug profile

Affected products

Vendor	Product	Affected	Fixed
JetBrains	CLion	< 2026.3, 2026.2.4.1	2026.3, 2026.2.4.1

Advisories 1

WID-SEC-2026-4381 JetBrains CLion: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 5, 2026

References

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