CVE-2026-44373
Nitro: Proxy scope bypass via percent-encoded path traversal in `routeRules`
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 13, 2026
- Updated
- May 14, 2026
- Reserved
- May 5, 2026
Description
Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could bypass a proxy route rule by sending percent-encoded path traversal (..%2f) in the URL, causing Nitro to forward a request that the upstream resolved outside the configured scope. This vulnerability is fixed in 3.0.260429-beta.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | GitHub_M |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
nitronitrojs |
|
nitropacknitrojs |
|
References
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