dbcve.org
Improper Input ValidationWeakness · CWE-20

CVE-2025-1087

CRITICAL · 9.3 CVSS v4.0 Published 2025-05-09
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges

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
Kong Insomnia Desktop Application before 11.0.2 contains a template injection vulnerability that allows attackers to execute arbitrary code. The vulnerability exists due to insufficient validation of user-supplied input when processing template strings, which can lead to arbitrary JavaScript execution in the context of the application.

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 · high confidence

Kong Insomnia Desktop Application before version 11.0.2 contains a template injection vulnerability where insufficient validation of user-supplied input during template string processing allows arbitrary JavaScript execution within the application context, leading to potential remote code execution.

MitigationUpgrade Kong Insomnia Desktop Application to version 11.0.2 or later to remediate the template injection vulnerability. Prioritize immediate patching given the critical CVSS score and arbitrary code execution capability.

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

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
Authentication
X
User interaction
A
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 Kong Insomnia Desktop Application is installed
    Locate the Insomnia application on the system. On Windows, check for C:\Program Files\Insomnia or the Start Menu. On macOS, check /Applications or ~/Applications. On Linux, check /opt/insomnia or the desktop launcher.
    Affected if The application is not found on the system.
  2. Determine installed version of Insomnia
    Open Insomnia and navigate to Help > About, or run 'insomnia --version' from the command line if available. Alternatively, check the application package metadata.
    Affected if Unable to determine the version number.
  3. Compare version against affected range
    If version is obtained, verify it is earlier than 11.0.2. Note that version 11.0.2 itself is not affected - only versions before it.
    Affected if Installed version is 11.0.1, 11.0.0, or any earlier version (e.g., 10.x, 9.x).
  4. Identify template string usage in requests
    Review Insomnia workspace collections for requests, environments, or configuration fields that use template syntax such as {{variable}} or {{template}}. Check environment variables and any dynamic request configurations.
    Affected if Template strings are actively used in request configurations, headers, body, or environment variables.

User is affected if Kong Insomnia Desktop Application version is below 11.0.2 and template string functionality is utilized within the application.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Kong Insomnia Desktop Application to version 11.0.2 or later to remediate the template injection vulnerability. Prioritize immediate patching given the critical CVSS score and arbitrary code execution capability.

Recommended fix Moderate confidence

11.0.2

  1. 1. Check the current installed version of Kong Insomnia Desktop Application (typically via Help > About or the application menu
  2. 2. Download Kong Insomnia version 11.0.2 or later from the official Kong website or GitHub releases page
  3. 3. Install the downloaded version following standard installation procedures for your operating system
  4. 4. After installation, verify the version is 11.0.2 or later by checking Help > About

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,720
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.

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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-2025-1087 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