CVE-2026-33242

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.

The following products are affected by CVE-2026-33242 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33242.

URL	Resource
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