In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via the Remote
Source GCVE Database
Not known to be exploited · CVSS 4.7 Medium : upgrade to 2026.3 when convenient.
Data as of 6 Nov 2026, 19:17 UTC
Thin evidence
One scorer or none| CNA (JetBrains) | CVSS 3.1 | 4.7 |
|---|
- Patch
- Available – fixed in 2026.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade IntelliJ IDEA to 2026.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsIntelliJ IDEA | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, users should exercise caution when using the Remote Development port forwarding feature and avoid interacting with untrusted remote sessions or URLs.
Description
A vulnerability in JetBrains IntelliJ IDEA versions before 2026.3 allows opening arbitrary URLs without user confirmation via the Remote Development port forwarding model. This could lead to limited impact on integrity without affecting confidentiality or availability.