CVE-2026-33331
Prior to version 1.13.9, a stored cross-site scripting (XSS) vulnerability exists in the OpenAPI documentation generation of orpc.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- orpc/orpc
- Source
- security-advisories@github.com
References
- https://github.com/middleapi/orpc/commit/4f0efa8a1d3fa8e8317a4b03cc3945a5dfd68addPatch
- https://github.com/middleapi/orpc/releases/tag/v1.13.9Product, Release Notes
- https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8Exploit, Mitigation, Vendor Advisory
- https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8Exploit, Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.