SSRF and file inclusion via unrestricted $ref
Published Aug 19, 2026 · Updated Aug 19, 2026
Improper external $ref resolution in Orval before 8.22.0 allows attackers to read local files and trigger build-host SSRF via crafted specs. In packages/orval/src/import-specs.ts, the external reference loader fetched remote URLs and read local file paths named in external $ref values without an allowlist or confinement to the input spec directory, then inlined that content into generated clients. Exploitation requires a developer workstation or CI job to run Orval on an attacker-controlled or attacker-influenced OpenAPI document, and the published advisory bounds the impact to network requests, file reads, and untrusted schema inclusion rather than code execution.
Summary
What happened
Improper external $ref resolution in Orval before 8.22.0 allows attackers to read local files and trigger build-host SSRF via crafted specs. In packages/orval/src/import-specs.ts, the external reference loader fetched remote URLs and read local file paths named in external $ref values without an allowlist or confinement to the input spec directory, then inlined that content into generated clients. Exploitation requires a developer workstation or CI job to run Orval on an attacker-controlled or attacker-influenced OpenAPI document, and the published advisory bounds the impact to network requests, file reads, and untrusted schema inclusion rather than code execution.
The record
- CVE
- CVE-2026-62680
- Published
- Aug 19, 2026
- Updated
- Aug 19, 2026
- Vendor
- Orval
- Product
- Orval
- Classifications
- CWE-918, CWE-829, CWE-22
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 8.22.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA reproduce.sh proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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