Code Execution Vulnerability in JetBrains Junie GitHub Action
CVE-2026-123852

7.4HIGH

Key Information:

Vendor

Jetbrains
Status
Junie Github Action
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123852?

A vulnerability exists in JetBrains Junie GitHub Action prior to version 1.8.0 that allows attackers to execute arbitrary code with workflow credentials through manipulated fork updates. This presents significant risks to users who may inadvertently allow compromised repositories to interact with their workflows.

Affected Version(s)

Junie GitHub Action 0 < 1.8.0

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.