Critical 9.8Published Sep 23, 2026

CVE-2026-96757orval before 8.29.0 Code Injection via unescaped OpenAPI media-type

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects orval-labs orval. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for orval-labs orval

Exploited in the last 30 days

orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Sep 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

orval-labs orval orval_labs:orval (from the name)	from 6.7.1 before 8.29.0; 8.29.0 not affected	CNA record

References

https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8pvendor-advisory
https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9jvendor-advisory
https://github.com/orval-labs/orval/pull/4007patch, issue-tracking
https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718adbpatch
https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2fe5patch
https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L584technical-description
https://github.com/orval-labs/orvalproduct
https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unescaped-openapi-media-typethird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.