Critical
orval MCP client is vulnerable to a code injection attack.
Type: advisorySources: OSV
orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-22785
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:00 UTC · Revision 1
Source evidence
orval MCP client is vulnerable to a code injection attack.
core-osv · Original sourcePublished 12 Jan 2026, 18:43 UTC
orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.
osv:CVE-2026-22785
Complete source record
{
"id": "95780574b9ca33c951e7c38c8e41d02bb16a491acaa487aa229dfdf35507656d",
"url": "https://osv.dev/vulnerability/CVE-2026-22785",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "orval MCP client is vulnerable to a code injection attack.",
"summary": "orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to \"break out\" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.",
"evidence": "osv:CVE-2026-22785",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2026-22785",
"aliases": [
"CVE-2026-22785",
"GHSA-mwr6-3gp8-9jmj"
],
"metrics": [
{
"type": "CVSS_V4",
"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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/orval-labs/orval",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "0eaab4d5a59bbe688f87b785bc1e47fa5cc1f719"
},
{
"fixed": "80b5fe73b94f120a3a5561952d6d4b0f8d7e928d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:orval:orval:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.18.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "80b5fe73b94f120a3a5561952d6d4b0f8d7e928d"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v7.17.0",
"v7.16.1",
"v7.16.0",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22785.json"
}
}
],
"modified": "2026-10-28T02:30:52.575024838Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22785.json",
"https://github.com/orval-labs/orval/security/advisories/GHSA-mwr6-3gp8-9jmj",
"https://nvd.nist.gov/vuln/detail/CVE-2026-22785",
"https://github.com/orval-labs/orval/commit/80b5fe73b94f120a3a5561952d6d4b0f8d7e928d"
],
"provider_metadata": {
"cwe_ids": [
"CWE-77"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22785.json"
}
},
"related_cves": [
{
"value": "CVE-2026-22785",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521161,
"published_at": "2026-01-12T18:43:16.637+00:00"
}