CVE-2026-123315: JetBrains Junie CLI command execution via Allow Similar Commands

CVE-2026-123315 · Severity: high · CVSS 7 · Published 2026-11-06

JetBrains Junie CLI is a command-line interface tool used by developers. A vulnerability in the "Allow Similar Commands" option allowed attackers to execute arbitrary commands on systems running affected versions, potentially leading to code execution and system compromise.

Technologies: Jetbrains Junie CLI. Vendors: Jetbrains.

Quick answers

Is CVE-2026-123315 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-123315 being exploited in the wild.
How severe is CVE-2026-123315?
High severity, with a CVSS score of 7, published 6 November 2026.
Which products and versions are affected?
Jetbrains Junie CLI before 26.8.24.
Is there a fix for CVE-2026-123315?
Yes: fixed in 26.8.24. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-123315 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-123315?
Check whether you run Jetbrains Junie CLI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 26.8.24

Technical details

The vulnerability exists in the Allow Similar Commands feature of Junie CLI, which fails to properly validate or sanitize command input, permitting command execution. This affects Junie CLI before version 26.8.24 and requires network access or local access to invoke the vulnerable functionality. Exploitation results in arbitrary command execution with the privileges of the user running the CLI tool.

Affected products

  • JetBrains Junie CLI before 26.8.24

Timeline

  • 2026-11-06: disclosed

References

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