CVE-2026-76184
8.2HighPublished 15 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Impact
- High impact on confidentiality
- Weakness
- CWE-200
Impact
Attackers hosting a malicious application on the same domain can steal sensitive Authorization headers from Jetty HttpClient requests. To exploit this, the attacker needs to trigger or manipulate an HTTP redirect to a path traversal URL.
Root cause
HttpClient fails to normalize path traversal sequences like '/..' in redirect URLs before matching authentication credentials, causing it to leak credentials to unauthorized paths on the same domain.
Affected systems
Eclipse Jetty HttpClient; specific versions are not listed in the advisory — check the vendor advisory.
CVSS v4.0 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Fix & remediation
Upgrade Eclipse Jetty to the latest patched release when available, or configure HttpClient redirect listeners to intercept and strip credentials or block unnormalized path redirects.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
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.