CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2026-33242
High (7.5) in salvo salvo. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in salvo 0.89.3.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- salvo:salvo
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-f842-phm9-p4v4 | crates.io | salvo | >=0.39.0 <0.89.3 | 0.89.3 |
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