Code Injection Vulnerability in orval OpenAPI Client Generation
CVE-2026-22785

9.3CRITICAL

Key Information:

Vendor

Orval-labs

Status
Orval
Vendor
CVE Published:
12 January 2026

What is CVE-2026-22785?

The orval tool, used for generating type-safe JavaScript clients from OpenAPI specifications, has a security flaw in its MCP server generation logic prior to version 7.18.0. This vulnerability stems from insufficient validation and escaping of the summary field within the OpenAPI specifications, allowing an attacker to escape the string literal. As a result, arbitrary code can be injected, leading to malfeasance in applications that utilize orval for client generation. Version 7.18.0 has rectified this issue.

Affected Version(s)

orval < 7.18.0

References

https://github.com/orval-labs/orval/security/advisories/G...
x_refsource_CONFIRM
https://github.com/orval-labs/orval/commit/80b5fe73b94f12...
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.