CVE-2026-123278
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC...
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker RMI endpoint
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker RMI endpoint
- Record
CVE-2026-123278- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-07
EUVDEUVD-2026-118043
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker RMI endpoint
- Record
EUVD-2026-118043- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-07
GitHub AdvisoriesGHSA-cwq7-7vmm-78gg
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC...
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker RMI endpoint
- Record
GHSA-cwq7-7vmm-78gg- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-06
NVD
In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker RMI endpoint
- Record
CVE-2026-123278- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | CVE List, EUVD | |
| published | EUVD, NVD | |
| aliases, references, title | GitHub Advisories | |
| cwes, severity | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-123278 is a medium vulnerability (CVSS 6.7) in Jetbrains Intellij Idea, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.