Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nitro | Nitro | < 2.13.4 |
Related Weaknesses (CWE)
References
- https://github.com/nitrojs/nitro/pull/4222Issue TrackingPatch
- https://github.com/nitrojs/nitro/pull/4223Issue TrackingPatch
- https://github.com/nitrojs/nitro/releases/tag/v2.13.4Release Notes
- https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-betaRelease Notes
- https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9qThird Party Advisory
FAQ
What is CVE-2026-44373?
CVE-2026-44373 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...
How severe is CVE-2026-44373?
CVE-2026-44373 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44373?
Check the references section above for vendor advisories and patch information. Affected products include: Nitro Nitro.