CVE-2026-96757
criticalorval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code.
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
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-23 17:17
Modified: 2026-09-23 18:17
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:55 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/orval-labs/orval disclosure@vulncheck.com
- https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L584 disclosure@vulncheck.com
- https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718adb disclosure@vulncheck.com
- https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2fe5 disclosure@vulncheck.com
- https://github.com/orval-labs/orval/pull/4007 disclosure@vulncheck.com
- https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p disclosure@vulncheck.com
- https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9j disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unescaped-open... disclosure@vulncheck.com
- https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:55 UTC · record ↗