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CVE-2026-40895

follow-redirects: Custom Authentication Headers Leaked to Cross-Domain Redirect Targets

follow-redirects is an open source, drop-in replacement for Node's `http` and `https` modules that automatically follows redirects. Prior to 1.16.0, when an HTTP request follows a cross-domain redirect (301/302/307/308), follow-redirects only strips authorization, proxy-authorization, and cookie headers (matched by regex at index.js). Any custom authentication header (e.g., X-API-Key, X-Auth-Token, Api-Key, Token) is forwarded verbatim to the redirect target. This vulnerability is fixed in 1.16.0.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Follow-redirects Follow-redirects Project
Products
Follow Redirects Follow-redirects
CVE-2024-28849

Proxy-Authorization header kept across hosts in follow-redirects

follow-redirects is an open source, drop-in replacement for Node's `http` and `https` modules that automatically follows redirects. In affected versions follow-redirects only clears authorization header during cross-domain redirect, but keep the proxy-authentication header which contains credentials too. This vulnerability may lead to credentials leak, but has been addressed in version 1.15.6. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS 3.1 · 6.5 Medium EPSS 1.0% KEV · Not listed
Vendors
Follow-redirects Project Redhat
Products
Follow-redirects Acm Advanced Cluster Security and 12 more