Vulnerabilities in pkg:npm/@redocly/cli

PACKAGE
Advisory Identifier: GHSA-657c-g7qc-r9j2
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Advisory Summary

CVE-2026-63225 is a MODERATE (CVSS 4.4) path traversal vulnerability (CWE-73: External Control of File Name or Path) affecting Redocly CLI libraries in the npm ecosystem. The issue involves path traversal when using `split` command. Remediation is available by upgrading affected packages to version 1.34.17, 2.33.2.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@redocly/cli

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@redocly/cli. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-657c-g7qc-r9j2 CVE-2026-63225 MODERATE Redocly CLI: Path traversal when using `split` command

CVE-2026-63225 at a Glance

CVE Identifier CVE-2026-63225
GHSA Identifier GHSA-657c-g7qc-r9j2
Severity MODERATE
CVSS v3.1 Base Score 4.4
CWE Classification CWE-73: External Control of File Name or Path
Affected Product Redocly CLI
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-63225

To remediate this vulnerability, upgrade all affected Redocly CLI dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@redocly/cli fixed: 1.34.17 
npm install @redocly/cli@1.34.17
@redocly/cli fixed: 2.33.2 
npm install @redocly/cli@2.33.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @redocly/cli

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-63225, inspect your project dependencies using npm:

npm ls @redocly/cli

Analyze the terminal output to locate any version of Redocly CLI in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.34.17), your application is affected.

Note: The npm ls @redocly/cli command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-73: External Control of File Name or Path, where the product allows user input to control or influence paths or file names that are used in filesystem operations. In Redocly CLI, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact An OpenAPI or AsyncAPI description could make the `split` command write files outside the chosen output directory, on the machine of anyone who runs `split` against it. The write is constrained rather than a free file-write primitive: component data is emitted only as YAML/JSON, and code-sample files are named after the HTTP method, so an attacker can place or overwrite files at an unintended path but has limited control over their name and contents. ### Patches Fixed in `@redocly/cli` v2.33.2. ### Workarounds Do not run the `split` command on API descriptions from untrusted or unreviewed sources. To detect an exploit attempt, inspect the description's component names and `x-codeSamples` `lang` values for a literal `../` — neither legitimately contains path segments.

CVE-2026-63225 Affected Redocly CLI Versions

2 component(s)
Fixed Versions:
1.34.172.33.2
Product / Package Ecosystem Affected Versions Fixed Version
@redocly/cli
npm/@redocly/cli
npm
< 1.34.17
1.34.17
@redocly/cli
npm/@redocly/cli
npm
≥ 2.0.0
< 2.33.2
2.33.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/Redocly/redocly-cli/security/advisories/GHSA-657c-g7qc-r9j2
NVD — CVE-2026-63225 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63225
Redocly CLI Source Repository REPOSITORY
https://github.com/Redocly/redocly-cli/pull/2891
Redocly CLI Source Repository REPOSITORY
https://github.com/Redocly/redocly-cli/pull/2923
Security Fix Commit FIX COMMIT
https://github.com/Redocly/redocly-cli/commit/26a0f299fae0b3bb7bd513043d2f1e90e69f79ee
Security Fix Commit FIX COMMIT
https://github.com/Redocly/redocly-cli/commit/504120419a72b5c684471478337ee3b45d8bfad3
Redocly CLI Source Repository REPOSITORY
https://github.com/Redocly/redocly-cli
Redocly CLI Release RELEASE
https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@1.34.17
Redocly CLI Release RELEASE
https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@2.33.2

Frequently Asked Questions

What is CVE-2026-63225?
CVE-2026-63225 is a security vulnerability in Redocly CLI involving Path traversal when using `split` command under CWE-73: External Control of File Name or Path.
Which Redocly CLI versions are affected?
Affected versions include releases prior to 1.34.17, 2.33.2 across affected packages: @redocly/cli.
What version fixes CVE-2026-63225?
Upgrading to 1.34.17, 2.33.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @redocly/cli affected?
Yes, @redocly/cli is affected in releases prior to 1.34.17, 2.33.2. Upgrade your dependency to 1.34.17, 2.33.2 or later.
What is the CVSS score of CVE-2026-63225?
CVE-2026-63225 has a CVSS v3.1 base score of 4.4 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
What CWE is associated with CVE-2026-63225?
CVE-2026-63225 is classified under CWE-73: External Control of File Name or Path (The product allows user input to control or influence paths or file names that are used in filesystem operations.).
How can I check npm dependencies for CVE-2026-63225?
Run the dependency tree command: 'npm ls @redocly/cli'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-657c-g7qc-r9j2",
  "modified" : "2026-09-17T14:58:50Z",
  "published" : "2026-09-17T14:58:50Z",
  "aliases" : [ "CVE-2026-63225" ],
  "summary" : "Redocly CLI: Path traversal when using `split` command",
  "details" : "### Impact\n\nAn OpenAPI or AsyncAPI description could make the `split` command write\nfiles outside the chosen output directory, on the machine of anyone who runs\n`split` against it. The write is constrained rather than a free file-write\nprimitive: component data is emitted only as YAML/JSON, and code-sample files are\nnamed after the HTTP method, so an attacker can place or overwrite files at an\nunintended path but has limited control over their name and contents.\n\n### Patches\n\nFixed in `@redocly/cli` v2.33.2.\n\n### Workarounds\n\nDo not run the `split` command on API descriptions from untrusted or unreviewed sources.\n\nTo detect an exploit attempt, inspect the description's component names and\n`x-codeSamples` `lang` values for a literal `../` — neither legitimately contains\npath segments.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@redocly/cli"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.34.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@redocly/cli"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.33.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/security/advisories/GHSA-657c-g7qc-r9j2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-63225"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/pull/2891"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/pull/2923"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/commit/26a0f299fae0b3bb7bd513043d2f1e90e69f79ee"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/commit/504120419a72b5c684471478337ee3b45d8bfad3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Redocly/redocly-cli"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@1.34.17"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Redocly/redocly-cli/releases/tag/@redocly/cli@2.33.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-73" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-17T14:58:50Z",
    "nvd_published_at" : "2026-09-16T19:17:24Z"
  }
}