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Vulnerability · Published Sep 16, 2026 · Assigned by GitHub_M

CVE-2026-63225Redocly CLI: Path traversal when using `split` command

Medium 4.4

In plain English

A medium-severity path traversal in redocly-cli from Redocly. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.2%top 92.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@redocly/cli1.34.17GHSA-657c-g7qc-r9j2
npm@redocly/cli2.33.2GHSA-657c-g7qc-r9j2

Affected products (as reported)

VendorProductVersions
Redocly redocly-cli < 1.34.17>= 2.0.0, < 2.33.2

Weakness: CWE-22, CWE-73 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References