CVE-2026-40895— follow-redirects: Custom Authentication Headers Leaked to Cross-Domain Redirect Targets
Quick assessment
Affected
follow-redirects follow-redirects
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Follow Redirects是follow-redirects开源的一个自动遵循 Http(s) 重定向的 Node.js 模块。 Follow Redirects 1.16.0之前版本存在信息泄露漏洞，该漏洞源于HTTP请求遵循跨域重定向时，仅剥离授权、代理授权和Cookie标头，可能导致自定义身份验证标头被转发到重定向目标。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1530 · Data from Cloud StorageAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| follow-redirects | follow-redirects | < 1.16.0 |
affected |
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I. Basic Information for CVE-2026-40895
Vulnerability Information
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Vulnerability Title
follow-redirects: Custom Authentication Headers Leaked to Cross-Domain Redirect Targets
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Follow Redirects 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Follow Redirects是follow-redirects开源的一个自动遵循 Http(s) 重定向的 Node.js 模块。 Follow Redirects 1.16.0之前版本存在信息泄露漏洞，该漏洞源于HTTP请求遵循跨域重定向时，仅剥离授权、代理授权和Cookie标头，可能导致自定义身份验证标头被转发到重定向目标。
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 |
|---|---|---|---|---|
| follow-redirects | follow-redirects | < 1.16.0 | - |
|
II. Public POCs for CVE-2026-40895
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-40895 (1)
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V. Comments for CVE-2026-40895
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