CVE-2026-33331

oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.9, a stored cross-site scripting (XSS) vulnerability exists in the OpenAPI documentation generation of orpc. If an attacker can control any field within the OpenAPI specification (such as info.description), they can break out of the JSON context and execute arbitrary JavaScript when a user views the generated API documentation. This issue has been patched in version 1.13.9.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/middleapi/orpc/commit/4f0efa8a1d3fa8e8317a4b03cc3945a5dfd68add	Patch
https://github.com/middleapi/orpc/releases/tag/v1.13.9	Product Release Notes
https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8	Exploit Mitigation Vendor Advisory
https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:orpc:orpc:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-24 20:16

Updated : 2026-03-26 13:26

NVD link : CVE-2026-33331

Mitre link : CVE-2026-33331

CVE.ORG link : CVE-2026-33331

JSON object : View

Products Affected

orpc

orpc

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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