Vulnerability · Published Oct 30, 2026 · Assigned by JetBrains
CVE-2026-118697
Critical 9.0
In plain English
A critical-severity improper certificate validation in CLion from JetBrains. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)0.3%top 78.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In JetBrains Toolbox App before 3.9.1 and 3.8.2; IntelliJ IDEA, PyCharm, PhpStorm, RubyMine, WebStorm, GoLand and Rider before 2026.3 and 2026.2.4; CLion before 2026.3 and 2026.2.4.1; DataGrip before 2026.3 and 2026.2.6.1; RustRover before 2026.3 and 2026.2.5, the jetbrainsd daemon trusted compromised intermediate certificates
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| JetBrains | Toolbox App | 3.9 – before 3.9.10 – before 3.8.2 |
| JetBrains | IntelliJ IDEA | 0 – before 2026.2.4 |
| JetBrains | PyCharm | 0 – before 2026.2.4 |
| JetBrains | PhpStorm | 0 – before 2026.2.4 |
| JetBrains | RubyMine | 0 – before 2026.2.4 |
| JetBrains | WebStorm | 0 – before 2026.2.4 |
| JetBrains | GoLand | 0 – before 2026.2.4 |
| JetBrains | Rider | 0 – before 2026.2.4 |
| JetBrains | CLion | 0 – before 2026.2.4.1 |
| JetBrains | DataGrip | 0 – before 2026.2.6.1 |
| JetBrains | RustRover | 0 – before 2026.2.5 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H