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.

References

https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-operationid

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

https://github.com/orval-labs/orval/pull/4008

https://github.com/orval-labs/orval/commit/b28c53f3e0c06190e0f6ea136737e6316432448f

https://github.com/orval-labs/orval/blob/v8.28.1/packages/query/src/query-generator.ts#L784

https://github.com/orval-labs/orval

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-85409

Details

Source: Mitre, NVD

Published: 2026-09-23

Updated: 2026-09-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base 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

Severity: Critical

EPSS

EPSS: 0.00426