dbcve.org
JunieApplication · Jetbrains

CVE-2025-59458

CRITICAL · 9.8 CVSS v3.1 Published 2025-09-17
Fix available
A fix is available. Upgrade to 243.284.50 / 251.284.50 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In JetBrains Junie before 252.284.66, 251.284.66, 243.284.66, 252.284.61, 251.284.61, 243.284.61, 252.284.50, 252.284.54, 251.284.54, 251.284.50, 243.284.54, 243.284.50 code execution was possible due to improper command validation

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

JetBrains Junie contains a command injection vulnerability allowing remote code execution due to improper validation of commands before execution. This critical flaw (CVSS 9.8) enables attackers to execute arbitrary code on affected systems.

MitigationUpdate JetBrains Junie to version 252.284.66 or later (for the 252.x branch), 251.284.66 or later (for 251.x), and 243.284.66 or later (for 243.x). Implement network segmentation and least-privilege execution contexts until patches are applied.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
JunieApplication
Affected:< 243.284.50>= 251.72.165, < 251.284.50>= 252.204.139, < 252.284.50

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Junie installation exists
    Check for JetBrains Junie in installed programs (Windows: Registry or Programs and Features; Linux: /opt, /usr/local, or package manager listings; macOS: /Applications or Homebrew)
    Affected if JetBrains Junie is installed on the system
  2. Locate Junie executable or version file
    Find the Junie binary or version manifest file - common locations include the installation directory, ~/.junie, or where the tool was deployed
    Affected if Unable to locate Junie installation files
  3. Determine installed Junie version
    Run 'junie --version' or check the version information in the installation directory
    Affected if Version command fails or returns no output
  4. Compare version against affected ranges
    Check if the installed version falls into any of these ranges: < 243.284.50, >= 251.72.165 AND < 251.284.50, >= 252.204.139 AND < 252.284.50
    Affected if Installed version matches any of the three vulnerable version ranges
  5. Identify command execution usage
    Review Junie configuration or logs for enabled features that execute external commands, scripts, or shell operations
    Affected if Command execution features are configured and Junie version is in affected range

Environment is affected if JetBrains Junie is installed with a version matching < 243.284.50, 251.72.165-251.284.50, or 252.204.139-252.284.50, particularly if command execution features are in use.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 243.284.50 / 251.284.50 / 252.284.50 or later
Fixed in 243.284.50251.284.50252.284.50
Interim mitigation

Update JetBrains Junie to version 252.284.66 or later (for the 252.x branch), 251.284.66 or later (for 251.x), and 243.284.66 or later (for 243.x). Implement network segmentation and least-privilege execution contexts until patches are applied.

Recommended fix High confidence

Upgrade to Junie version 243.284.66, 251.284.66, or 252.284.66 depending on your current version branch

  1. 1. Identify the currently installed Junie version from the application UI or system information
  2. 2. Determine which version branch your current installation belongs to (243.x, 251.x, or 252.x)
  3. 3. Download the appropriate fixed version from the official JetBrains source: 243.284.66 for the 243.x branch, 251.284.66 for the 251.x branch, or 252.284.66 for the 252.x branch
  4. 4. Back up any existing Junie data and configurations
  5. 5. Install the fixed version following standard JetBrains installation procedures
  6. 6. Verify the installation was successful and the application launches without errors

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Junie Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-59458 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data