# CVE-2026-63325: Redocly CLI: Arbitrary code execution via Arazzo `$faker` expression using `respect`

> Attackers can execute arbitrary code and read secrets by tricking users into processing malicious Arazzo descriptions with the Redocly CLI.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Sep 2026
- **Updated:** 18 Sep 2026
- **Also known as:** GHSA-xw2f-5386-m542

## What is CVE-2026-63325?

CVE-2026-63325 is a high-severity code injection vulnerability in redocly-cli, published on 16 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Redocly CLI makes OpenAPI validation, linting, and documentation workflows easier. Prior to version 2.33.0 of @redocly/respect-core and @redocly/cli, the respect command dynamically evaluates $faker runtime expressions in Arazzo descriptions. A crafted expression can traverse constructor, prototype, or __proto__ properties in packages/respect-core/src/modules/context-parser/get-value-from-context.ts, reach the JavaScript Function constructor, and execute arbitrary code when a user processes an untrusted description. The executed code runs with the privileges of the CLI process and can execute shell commands or read CI secrets. Users processing only trusted, self-authored workflows are not affected. This issue is fixed in @redocly/respect-core and @redocly/cli version 2.33.0.

Weakness: CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code), CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-63325?


## How do I fix CVE-2026-63325?

No fix has been published for CVE-2026-63325 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-63325 being exploited?

There is no known exploitation of CVE-2026-63325 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-63325 and fix it if it is affected.

What it is: CVE-2026-63325 is a high-severity code injection vulnerability in redocly-cli, published on 16 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-63325 in the wild and no public exploit code.

Affected product: redocly-cli. 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-2026-63325/ (Markdown: https://insights.sbomify.com/CVE-2026-63325/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-63325
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-63325
- OSV: https://osv.dev/vulnerability/CVE-2026-63325

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-63325/
Summaries are generated and may contain mistakes; the official description above is the record.