IntelliJ IDEA is a widely used developer IDE; unauthenticated local code execution on Remote Development hosts risks developer environment compromise and potential supply-chain impact.
CVE-2026-86502
Missing TLS/auth in IntelliJ's IJent gRPC allows code exec on Remote Development hosts
Is CVE-2026-86502 being exploited?
Not confirmed. CVE-2026-86502 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.14% probability of exploitation in the next 30 days.
How severe is CVE-2026-86502?
CVE-2026-86502 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-86502?
Yes. A fix has been recorded for CVE-2026-86502. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-86502 affect?
CVE-2026-86502 affects JetBrains IntelliJ IDEA < 2026.2.2, IJent gRPC server, Remote Development hosts (IDE remote backend). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-86502?
Update IntelliJ IDEA to 2026.2.2+ and restrict access to remote dev hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated IJent gRPC server allows local attackers to execute arbitrary code on Remote Development hosts.
Immediate action required
- affected< 2026.2.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.