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CVE-2026-33242

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/24/2026

Last Modified3/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

salvo:salvo

Weaknesses (CWE)

CWE-22

References

https://github.com/salvo-rs/salvo/commit/7bac30e6960355c58e358e402072d4a3e5c4e1bb#diff-e319bf7afcb577f7e9f4fb767005072f6335d23f306dd52e8c94f3d222610d02R20(security-advisories@github.com)

https://github.com/salvo-rs/salvo/releases/tag/v0.89.3(security-advisories@github.com)

https://github.com/salvo-rs/salvo/security/advisories/GHSA-f842-phm9-p4v4(security-advisories@github.com)

https://github.com/salvo-rs/salvo/security/advisories/GHSA-f842-phm9-p4v4(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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