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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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-f842-phm9-p4v4 | Salvo has a Path Traversal in salvo-proxy::encode_url_path allows API Gateway Bypass |
Fixes
Solution
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Workaround
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References
History
Tue, 24 Mar 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Salvo has a Path Traversal in salvo-proxy::encode_url_path allows API Gateway Bypass | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-23T23:40:39.886Z
Reserved: 2026-03-18T02:42:27.508Z
Link: CVE-2026-33242
No data.
Status : Received
Published: 2026-03-24T00:16:29.670
Modified: 2026-03-24T00:16:29.670
Link: CVE-2026-33242
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OpenCVE Enrichment
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Weaknesses
Github GHSA