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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44373.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:nitro:nitro:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.13.4"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "v2.13.4",
"range": [
{
"fixed": "f92e684736169f8b1d563fd6154060643d05f4bb"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v3.0.260429-beta",
"range": [
{
"fixed": "c467f13eacaa3100f565b0ec57eefecad847aac4"
}
],
"source": "REFERENCES_TAG"
}
]
}