CVE-2026-64810: CWE-79 in JetBrains IntelliJ IDEA
A cross-site scripting (CWE-79) vulnerability exists in JetBrains IntelliJ IDEA before version 2026.2, where HTML injection in IDE notifications could allow silent user activity tracking. The vulnerability has a CVSS score of 4.3 (medium severity). No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
CVE-2026-64810 describes an HTML injection vulnerability in JetBrains IntelliJ IDEA versions prior to 2026.2. This vulnerability allows injection of HTML content into IDE notifications, which can be exploited to silently track user activity. The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation). The CVSS 3.1 vector indicates it is remotely exploitable without privileges, requires user interaction, and impacts confidentiality with low severity. No known exploits are reported in the wild, and no official remediation or patch information is available at this time.
Potential Impact
The vulnerability allows an attacker to inject HTML into IDE notifications, potentially enabling silent tracking of user activity. The impact is limited to confidentiality with no direct integrity or availability effects. The CVSS score of 4.3 reflects a medium severity risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with untrusted content that might trigger IDE notifications. No official mitigation or workaround has been provided by JetBrains at this time.
CVE-2026-64810: CWE-79 in JetBrains IntelliJ IDEA
Description
A cross-site scripting (CWE-79) vulnerability exists in JetBrains IntelliJ IDEA before version 2026.2, where HTML injection in IDE notifications could allow silent user activity tracking. The vulnerability has a CVSS score of 4.3 (medium severity). No official patch or remediation guidance is currently provided by the vendor.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-64810 describes an HTML injection vulnerability in JetBrains IntelliJ IDEA versions prior to 2026.2. This vulnerability allows injection of HTML content into IDE notifications, which can be exploited to silently track user activity. The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation). The CVSS 3.1 vector indicates it is remotely exploitable without privileges, requires user interaction, and impacts confidentiality with low severity. No known exploits are reported in the wild, and no official remediation or patch information is available at this time.
Potential Impact
The vulnerability allows an attacker to inject HTML into IDE notifications, potentially enabling silent tracking of user activity. The impact is limited to confidentiality with no direct integrity or availability effects. The CVSS score of 4.3 reflects a medium severity risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with untrusted content that might trigger IDE notifications. No official mitigation or workaround has been provided by JetBrains at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-07-20T18:20:29.976Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6207979c2644c7f80b6488
Added to database: 07/23/2026, 12:22:47 UTC
Last enriched: 07/23/2026, 12:38:21 UTC
Last updated: 07/23/2026, 12:41:37 UTC
Views: 3
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