# CVE-2025-1087: Arbitrary Code Execution in Kong Insomnia Desktop Application

> Attackers can execute arbitrary code via template injection in Kong Insomnia due to insufficient input validation.

- **Severity:** Critical 9.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 May 2025
- **Updated:** 17 Sep 2025
- **Also known as:** GHSA-mvxq-6j8f-hrgw

## What is CVE-2025-1087?

CVE-2025-1087 is a critical code injection vulnerability in Kong Inc. Insomnia, published on 9 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-1087?


## How do I fix CVE-2025-1087?

No fix has been published for CVE-2025-1087 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-1087 being exploited?

There is no known exploitation of CVE-2025-1087 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-1087 and fix it if it is affected.

What it is: CVE-2025-1087 is a critical code injection vulnerability in Kong Inc. Insomnia, published on 9 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-1087 in the wild and no public exploit code.

Affected product: Kong Inc. Insomnia. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-1087/ (Markdown: https://insights.sbomify.com/CVE-2025-1087/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-1087
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-1087
- OSV: https://osv.dev/vulnerability/CVE-2025-1087

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-1087/
Summaries are generated and may contain mistakes; the official description above is the record.