CVE-2026-33331 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in oRPC versions through 1.13.8, specifically within the OpenAPI documentation generation. This issue arises because the application directly embeds OpenAPI specification fields, such as info.description, into the HTML response without proper escaping. As a result, an attacker can inject malicious JavaScript that executes when the documentation is viewed.
Users are advised to update to oRPC version 1.13.9 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 25, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8 | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/middleapi/orpc/commit/4f0efa8a1d3fa8e8317a4b03cc3945a5dfd68add | [email protected] | Patch |
| https://github.com/middleapi/orpc/releases/tag/v1.13.9 | [email protected] | ProductRelease Notes |
| https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8 | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| orpc orpc | < 1.13.9 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 1, 2026 | Reanalysis | [email protected] |
| Mar 26, 2026 | Initial Analysis | [email protected] |
| Mar 25, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | New CVE Received | [email protected] |