CVE-2026-8368— LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects
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I. Basic Information for CVE-2026-8368
Vulnerability Information
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Vulnerability Title
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects
Source: NVD (National Vulnerability Database)
Vulnerability Description
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes. A redirect to an attacker controlled host therefore discloses the caller's credentials to that host.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的凭证保护机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
LWP::UserAgent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LWP::UserAgent是libwww-perl开源的一个Web用户代理类，用于发送HTTP请求。 LWP::UserAgent 6.83之前版本存在安全漏洞，该漏洞源于跨源重定向时未正确处理Authorization和Proxy-Authorization标头，可能导致凭据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OALDERS | LWP::UserAgent | 0 ~ 6.83 | - |
II. Public POCs for CVE-2026-8368
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/libwww-perl/libwww-perl/pull/512issue-tracking
- https://nvd.nist.gov/vuln/detail/CVE-2026-8368
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