Vulnerability · Published Sep 7, 2026 · Assigned by JetBrains
CVE-2026-86504
High 7.8
In plain English
A high-severity security flaw in IntelliJ IDEA from JetBrains. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust confirmation before building a Dev Container allowed host-level code execution
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| JetBrains | IntelliJ IDEA | 0 – before 2026.2.2 |
Weakness: CWE-829 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H