n8n before 2.46.1 contains a credential exposure vulnerability that forwards Authorization headers and basic auth credentials on cross-origin redirects because sendCredentialsOnCrossOriginRedirect defaults to true. Attackers controlling a redirect target or an expression-fed URL in credential-using nodes can capture stored workflow credentials sent to their endpoint.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-522"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126388.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "2.46.0"
},
{
"fixed": "2.46.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.45.5"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}