Apache CXF’s OIDC relying-party component could redirect users to an attacker-controlled URL after successful authentication. The issue occurs because attacker-controlled state parameters are preserved and later used as redirect targets without validating that the final decoded URI belongs to the RP’s origin. Both directly encoded and double-encoded external URLs can trigger the issue, depending on which validation path is used. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.
{
"cna_assigner": "apache",
"cwe_ids": [
"CWE-601"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79650.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.4"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.1.9"
},
{
"fixed": "3.6.13"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
]
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.6.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.0"
},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.4"
}
],
"source": "CPE_RANGE"
}
]
}