Wide use of IntelliJ IDEA among developers; vulnerability affects Remote Development and can compromise developer hosts and pipelines, warranting broad IT/DevOps alerting.
CVE-2026-64813
IntelliJ IDEA (<2026.2) remote dev allows unauthorized settings modification.
Is CVE-2026-64813 being exploited?
Not confirmed. CVE-2026-64813 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 0.51% probability of exploitation in the next 30 days.
How severe is CVE-2026-64813?
CVE-2026-64813 is rated Critical with a CVSS score of 10.0. 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-2026-64813?
Yes. A fix has been recorded for CVE-2026-64813. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64813 affect?
CVE-2026-64813 affects JetBrains IntelliJ IDEA <2026.2, Remote Development sessions, JetBrains Gateway, Developer workstations / remote hosts. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64813?
Upgrade to IntelliJ IDEA 2026.2+ immediately; restrict Remote Development until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can modify Remote Development session settings to alter project config, enable malicious plugins, or enable remote code execution on developer hosts.
Immediate action required
- affected< 2026.2
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.