CVE-2026-63225
Redocly CLI makes OpenAPI validation, linting, and documentation workflows easier. Prior to @redocly/cli 2.33.2, the split command constructs output paths under --outDir from untrusted OpenAPI or AsyncAPI component names and x-codeSamples lang values without verifying that the resolved target remains inside the selected directory. A description containing literal ../ traversal segments in those fields can cause the split command to place or overwrite files outside --outDir. Component data remains constrained to YAML or JSON, and code-sample filenames remain based on the HTTP method, so this is not an unrestricted arbitrary-content file write. This issue is fixed in @redocly/cli version 2.33.2.
What this means for your business
- An attacker can use it only with access to the machine itself, without a login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.2% chance of attack attempts being seen in the next 30 days, ranking above 6% of all known flaws.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 4.4 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L- Weakness
- CWE-22
- Assigned by
- security-advisories@github.com
Dates
- Published
- 2026-09-16
- Last modified
- 2026-09-17
- Sources
- NVD
References
- https://github.com/Redocly/redocly-cli/commit/26a0f299fae0b3bb7bd513043d2f1e90e69f79ee
- https://github.com/Redocly/redocly-cli/commit/504120419a72b5c684471478337ee3b45d8bfad3
- https://github.com/Redocly/redocly-cli/pull/2891
- https://github.com/Redocly/redocly-cli/pull/2923
- https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@1.34.17
- https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@2.33.2
- https://github.com/Redocly/redocly-cli/security/advisories/GHSA-657c-g7qc-r9j2