{"cve":"CVE-2026-33242","nvd":{"published":"2026-03-24T00:16:29.670","modified":"2026-06-17T10:37:10.720","status":"Analyzed","description":"Salvo is a Rust web framework. Versions 0.39.0 through 0.89.2 have a Path Traversal and Access Control Bypass vulnerability in the salvo-proxy component. The vulnerability allows an unauthenticated external attacker to bypass proxy routing constraints and access unintended backend paths (e.g., protected endpoints or administrative dashboards). This issue stems from the encode_url_path function, which fails to normalize \"../\" sequences and inadvertently forwards them verbatim to the upstream server by not re-encoding the \".\" character. Version 0.89.3 contains a patch.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-22"],"references":["https://github.com/salvo-rs/salvo/commit/7bac30e6960355c58e358e402072d4a3e5c4e1bb#diff-e319bf7afcb577f7e9f4fb767005072f6335d23f306dd52e8c94f3d222610d02R20","https://github.com/salvo-rs/salvo/releases/tag/v0.89.3","https://github.com/salvo-rs/salvo/security/advisories/GHSA-f842-phm9-p4v4","https://github.com/salvo-rs/salvo/security/advisories/GHSA-f842-phm9-p4v4"],"products":["salvo:salvo"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33242","score":0.00575,"percentile":0.47475,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f842-phm9-p4v4","url":"https://osv.dev/vulnerability/GHSA-f842-phm9-p4v4","summary":"Salvo has a Path Traversal in salvo-proxy::encode_url_path allows API Gateway Bypass","modified":"2026-03-25T21:02:59.910556Z","packages":[{"ecosystem":"crates.io","name":"salvo","purl":"pkg:cargo/salvo","ranges":[">=0.39.0 <0.89.3"],"fixed":["0.89.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}