CVE-2026-64810
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In JetBrains IntelliJ IDEA before version 2026.2, HTML injection was possible in IDE notifications, allowing silent user activity tracking.
Risk Assessment
An attacker can monitor user actions without their knowledge, violating privacy and potentially leading to sensitive data leakage.
Recommendation
Immediately update IntelliJ IDEA to version 2026.2 or later.
Other vulnerabilities in JetBrains IntelliJ IDEA
See all- CVE-2026-41882High
In JetBrains IntelliJ IDEA versions before 2024.3.7.1, 2025.1.7.1, 2025.2.6.2, 2025.3.4.1, and 2026.1.1, it was possible to read arbitrary local files via the built-in web server.
- CVE-2026-64812Critical
In JetBrains IntelliJ IDEA before version 2026.2, unauthorized input injection is possible during a Remote Development session.
- CVE-2026-75058Medium
In JetBrains IntelliJ IDEA before 2026.2.1 XXE was possible in the Eclipse settings importers.
- CVE-2026-75057Medium
In JetBrains IntelliJ IDEA before 2026.1.5 git credentials were written in plaintext to the IDE log.
- CVE-2026-75056High
In JetBrains IntelliJ IDEA before 2026.2.1, remote code execution (RCE) was possible via the Markdown export tool.
- CVE-2026-75055Medium
In JetBrains IntelliJ IDEA before 2026.2.1 hadoop ResourceManager could read local files via XXE.
- CVE-2026-75054Medium
In JetBrains IntelliJ IDEA before 2026.2.1 SSRF was possible via the OpenAPI preview proxy in untrusted projects.
- CVE-2026-75053Medium
In JetBrains IntelliJ IDEA before 2026.2.1, a Server-Side Request Forgery (SSRF) was possible via the DevKit debug listener endpoint.
- CVE-2026-75052Low
In JetBrains IntelliJ IDEA before 2026.2.1, command execution via crafted Markdown preview content was possible in trusted projects.
- CVE-2026-64815High
Vulnerability in JetBrains IntelliJ IDEA before version 2026.2 allows arbitrary code injection via UI Designer form files.
Original NVD description (English source)
In JetBrains IntelliJ IDEA before 2026.2 hTML injection was possible in an IDE notification, allowing silent user activity tracking