tower-http's improper validation of Windows paths could lead to directory traversal attack
Priority LOW 38CWE-22Published · Updated
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
`tower_http::services::fs::ServeDir` didn't correctly validate Windows paths meaning paths like `/foo/bar/c:/windows/web/screen/img101.png` would be allowed and respond with the contents of `c:/windows/web/screen/img101.png`. Thus users could potentially read files anywhere on the filesystem. This only impacts Windows. Linux and other unix likes are not impacted by this.
Why it matters now
Fix Fixed tower-http (crates.io): 0.2.1, 0.1.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | tower-http (crates.io) | 0.2.0 to before 0.2.1 | 0.2.1 | Patch available | GHSA-wwh2-r387-g5rm |
| — | tower-http (crates.io) | before 0.1.3 | 0.1.3 | Patch available | GHSA-wwh2-r387-g5rm |
- tower-http (crates.io) Vendor— Affected 0.2.0 to before 0.2.1 Fixed in 0.2.1 Patch available GHSA-wwh2-r387-g5rm
- tower-http (crates.io) Vendor— Affected before 0.1.3 Fixed in 0.1.3 Patch available GHSA-wwh2-r387-g5rm
Remediation
- Fix · GHSA-wwh2-r387-g5rm tower-http (crates.io) Fixed in 0.2.1 Advisory →
- Fix · GHSA-wwh2-r387-g5rm tower-http (crates.io) Fixed in 0.1.3 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-wwh2-r387-g5rm
References
Sources
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