CVE-2026-96759

Critical

Description

orval before 8.29.0 fails to escape the operationId parameter when emitting it into generated TanStack Query mutator options metadata objects. Attackers can inject arbitrary JavaScript code through a crafted operationId in an OpenAPI specification that executes when generated hooks are called.

SeverityCritical

CVSS9.8

Exploit probability—

ProductOrval

PublishedSep 23, 2026

First seenSep 23, 2026

Weakness typeCWE-94Code injection

How to fix

Update

orval-labs orval8.29.0 or later

Patches

github.com/orval-labs/orval/pull/4008
github.com/orval-labs/orval/commit/b28c53f3e0c06190e0f6ea136737e6316432448f

Vendor advisories

github.com/orval-labs/orval/security/advisories/GHSA-vv88-cm6j-665j

Affected products

Product	Affected versions	Fixed in
orval-labs orval	v < 8.29.0	8.29.0

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