CVE-2026-44373
Last modified
CVE-2026-44373 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nitro | Nitro | < 2.13.4 |
| Nitro | Nitro | > 2.13.4, < 3.0.260429 |
References
- https://github.com/nitrojs/nitro/pull/4222Issue Tracking, Patch
- https://github.com/nitrojs/nitro/pull/4223Issue Tracking, Patch
- https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9qThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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