High severity7.5NVD Advisory· Published Mar 24, 2026· Updated Jun 17, 2026
CVE-2026-33242
CVE-2026-33242
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
salvocrates.io | >= 0.39.0, < 0.89.3 | 0.89.3 |
Affected products
3Patches
Vulnerability mechanics
References
5- github.com/salvo-rs/salvo/commit/7bac30e6960355c58e358e402072d4a3e5c4e1bbnvdPatchWEB
- github.com/salvo-rs/salvo/security/advisories/GHSA-f842-phm9-p4v4nvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-f842-phm9-p4v4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33242ghsaADVISORY
- github.com/salvo-rs/salvo/releases/tag/v0.89.3nvdProductRelease NotesWEB
News mentions
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