CVE-2026-22256

The record

Salvo is a Rust web backend framework. Prior to version 0.88.1, the function list_html generate an file view of a folder which include a render of the current path, in which its inserted in the HTML without proper sanitation, this leads to reflected XSS using the fact that request path is decoded and normalized in the matching stage but not is inserted raw in the html view (current.path), the only constraint here is for the root path (eg. /files in the PoC example) to have a sub directory (e.g common ones styles/scripts/etc…) so that the matching return the list HTML page instead of the Not Found page. This issue has been patched in version 0.88.1.

Affected packages

Related vulnerabilities

• GHSA-rjf8-2wcw-f6mp Salvo is vulnerable to reflected XSS in the list_html function Same vulnerability
• CVE-2026-33241 Salvo is a Rust web framework. Also affects salvo
• CVE-2026-33242 Salvo is a Rust web framework. Also affects salvo
• GHSA-pp9r-xg4c-8j4x Salvo Affected by Denial of Service via Unbounded Memory Allocation in Form Data Parsing Also affects salvo
• GHSA-f842-phm9-p4v4 Salvo has a Path Traversal in salvo-proxy::encode_url_path allows API Gateway Bypass Also affects salvo
• GHSA-54m3-5fxr-2f3j Salvo is vulnerable to stored XSS in the list_html function by uploading files with… Also affects salvo
• CVE-2026-22257 Salvo is a Rust web backend framework. Also affects salvo
• CVE-2026-96379 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")… CWE-79