CVE-2026-7168— cross-proxy Digest auth state leak
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I. Basic Information for CVE-2026-7168
Vulnerability Information
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Vulnerability Title
cross-proxy Digest auth state leak
Source: NVD (National Vulnerability Database)
Vulnerability Description
Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
curl 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于代理认证头传递错误，可能导致第一个代理的Proxy-Authorization头被错误传递给第二个代理。
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
II. Public POCs for CVE-2026-7168
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Same Patch Batch · curl · 2026-05-13 · 8 CVEs total
| CVE-2026-7009 | OCSP stapling bypass with Apple SecTrust | |
| CVE-2026-6253 | proxy credentials leak over redirect-to proxy | |
| CVE-2026-6429 | netrc credential leak with reused proxy connection | |
| CVE-2026-6276 | stale custom cookie host causes cookie leak | |
| CVE-2026-4873 | connection reuse ignores TLS requirement | |
| CVE-2026-5545 | wrong reuse of HTTP Negotiate connection | |
| CVE-2026-5773 | wrong reuse of SMB connection |
IV. Related Vulnerabilities
V. Comments for CVE-2026-7168
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