CVE-2026-123832: JetBrains CLion · Untrusted Functionality Inclusion
Affects JetBrains CLionSource CVE Database V5
Not known to be exploited · CVSS 9.6 Critical : upgrade to 2026.2 as a priority.
Data as of 6 Nov 2026, 17:47 UTC
Thin evidence
One scorer or none| CNA (JetBrains) | CVSS 3.1 | 9.6 |
|---|
- Patch
- Available – fixed in 2026.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade JetBrains CLion to 2026.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsCLion | Affected
| Fixed in
|
AI-suggested
Upgrade JetBrains CLion to version 2026.2 or later, where this vulnerability has been fixed. No other mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-123832 is a critical vulnerability in JetBrains CLion before version 2026.2 that allows code execution in Safe Mode via a JSON compilation database. This flaw involves the inclusion of functionality from an untrusted control sphere, classified under CWE-829. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability. A fix is available in version 2026.2.