CVE-2026-63325
Redocly CLI: Arbitrary code execution via Arazzo `$faker` expression using `respect`
- State
- Published
- Severity
- 7.8 High
- Published
- Sep 16, 2026
- Updated
- Sep 18, 2026
- Reserved
- Jul 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
redocly-cliRedocly |
|
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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