In Eclipse Jetty, HttpClient may receive a redirect of the form:
/secure/../evil
If an attacker is able to control the redirects, then HttpClient matches authentication credentials against /secure rather than normalizing the path to /evil, and will therefore follow the redirect sending the Authorization header for /secure to /evil.
This also mean that the attacker must have an evil application deployed on the same domain as the target.
{
"cna_assigner": "eclipse",
"cwe_ids": [
"CWE-200"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76184.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "11.0.0"
},
{
"last_affected": "11.0.32"
},
{
"introduced": "10.0.0"
},
{
"last_affected": "10.0.32"
},
{
"introduced": "9.4.0"
},
{
"last_affected": "9.4.64"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"extracted_events": [
{
"introduced": "12.1.0"
},
{
"last_affected": "12.1.12"
},
{
"introduced": "12.0.0"
},
{
"last_affected": "12.0.38"
}
],
"source": "AFFECTED_FIELD"
}