In JetBrains Toolbox App before 3.9.1 and 3.8.2; IntelliJ IDEA before 2026.3 and 2026.2.4, the jetbrainsd daemon trusted compromised intermediate certificates
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://blog.jetbrains.com/security/2026/10/compromised-emudhra-certificates-id…
cve@jetbrains.com
https://bugzilla.mozilla.org/show_bug.cgi?id=2083449
cve@jetbrains.com
https://emudhra.com/en/post/certificate-security-incident
cve@jetbrains.com
https://www.jetbrains.com/privacy-security/issues-fixed/
cve@jetbrains.com