Description
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.
Published: 2026-09-23
Score: 9.3 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 23 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title orval before 8.29.0 Code Injection via unescaped OpenAPI media-type
First Time appeared Orval
Orval orval
Weaknesses CWE-94
CPEs cpe:2.3:a:orval:orval:*:*:*:*:*:*:*:*
Vendors & Products Orval
Orval orval
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-23T17:48:29.041Z

Reserved: 2026-09-23T15:58:30.841Z

Link: CVE-2026-96757

cve-icon Vulnrichment

Updated: 2026-09-23T17:48:16.312Z

cve-icon NVD

Status : Deferred

Published: 2026-09-23T17:17:24.923

Modified: 2026-09-23T18:17:12.200

Link: CVE-2026-96757

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T18:15:07Z

Weaknesses