GHSA-CXQ5-97V7-87J8
Vulnerability from github – Published: 2026-09-02 14:54 – Updated: 2026-09-02 14:54Summary
Orval resolves OpenAPI $refs by fetching remote http(s) URLs and reading local files (including
absolute / out-of-tree paths), inlining the referenced schema into the generated client. Running
orval on a spec whose $ref points at an attacker/internal URL or an arbitrary local file yields
SSRF, remote file inclusion, and local file inclusion. Verified on 8.19.0. This is a different class
from Orval's published output-injection CVEs (CVE-2026-22785/23947/24132/25141), none of which covers
the $ref resolver.
Details
$ref: http://attacker/internal-evil.json#/...→ build host fetches (SSRF) and inlines the remote schema (RFI); confirmed propertyREMOTE_ORVAL_PROPin the generated client.$ref: /abs/path.json#/...or../../secret.json#/...→ out-of-tree local file read + inlined (LFI).
No RCE: on 8.19.0 the description JSDoc is escaped (*/->*\/, the published fix), so $ref content
cannot break out into code. The chain stops at SSRF + RFI + LFI.
Fix: don't resolve remote $refs by default (opt-in + host allowlist); confine local $ref
resolution to the input directory tree (reject absolute paths and ../ escapes).
PoC
reproduce.sh attached: confirms LFI (out-of-tree read), SSRF (listener hit), RFI (remote schema
inlined). Verified on Orval 8.19.0.
Impact
Build-time SSRF from the developer or CI host, disclosure of arbitrary local files, and inclusion of untrusted remote content, from running the generator on an attacker-controlled or attacker-influenced OpenAPI description. No code execution (output escaping is in place post the earlier fixes).
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "orval"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.22.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-62680"
],
"database_specific": {
"cwe_ids": [
"CWE-22",
"CWE-829",
"CWE-918"
],
"github_reviewed": true,
"github_reviewed_at": "2026-09-02T14:54:48Z",
"nvd_published_at": "2026-08-19T18:16:54Z",
"severity": "HIGH"
},
"details": "### Summary\n\nOrval resolves OpenAPI `$ref`s by fetching remote `http(s)` URLs and reading local files (including\nabsolute / out-of-tree paths), inlining the referenced schema into the generated client. Running\n`orval` on a spec whose `$ref` points at an attacker/internal URL or an arbitrary local file yields\nSSRF, remote file inclusion, and local file inclusion. Verified on 8.19.0. This is a different class\nfrom Orval\u0027s published output-injection CVEs (CVE-2026-22785/23947/24132/25141), none of which covers\nthe `$ref` resolver.\n\n### Details\n\n- `$ref: http://attacker/internal-evil.json#/...` \u2192 build host fetches (SSRF) and inlines the remote\n schema (RFI); confirmed property `REMOTE_ORVAL_PROP` in the generated client.\n- `$ref: /abs/path.json#/...` or `../../secret.json#/...` \u2192 out-of-tree local file read + inlined (LFI).\n\nNo RCE: on 8.19.0 the description JSDoc is escaped (`*/`-\u003e`*\\/`, the published fix), so `$ref` content\ncannot break out into code. The chain stops at SSRF + RFI + LFI.\n\nFix: don\u0027t resolve remote `$ref`s by default (opt-in + host allowlist); confine local `$ref`\nresolution to the input directory tree (reject absolute paths and `../` escapes).\n\n### PoC\n\n`reproduce.sh` attached: confirms LFI (out-of-tree read), SSRF (listener hit), RFI (remote schema\ninlined). Verified on Orval 8.19.0.\n\n### Impact\n\nBuild-time SSRF from the developer or CI host, disclosure of arbitrary local files, and inclusion of untrusted remote content, from running the generator on an attacker-controlled or attacker-influenced OpenAPI description. No code execution (output escaping is in place post the earlier fixes).",
"id": "GHSA-cxq5-97v7-87j8",
"modified": "2026-09-02T14:54:49Z",
"published": "2026-09-02T14:54:48Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/security/advisories/GHSA-cxq5-97v7-87j8"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62680"
},
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/pull/3692"
},
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/pull/3723"
},
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/commit/23786c056f4eba38c02bf2968677988dbbe4de10"
},
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/commit/8ef1bfdf3f9bcaf9dabfbe2e42887f1c0e159ab6"
},
{
"type": "PACKAGE",
"url": "https://github.com/orval-labs/orval"
},
{
"type": "WEB",
"url": "https://github.com/orval-labs/orval/releases/tag/v8.22.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Orval: Generation-time SSRF + remote/local file inclusion via unrestricted $ref"
}
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.
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.