CVE-2026-44373

EUVD-2026-30163
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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/nitrojs/nitro/pull/4222
https://github.com/nitrojs/nitro/pull/4223
https://github.com/nitrojs/nitro/releases/tag/v2.13.4
https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta
https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9q