follow-redirects is a Node.js HTTP and HTTPS client wrapper that automatically follows redirects. From 1.16.0 until 1.16.1, escapeRegex leaves valid header-name metacharacters unescaped in sensitiveHeaders. When an application declares a sensitive header whose name contains ^ or | and follows a cross-origin or HTTPS-to-HTTP redirect, unescaped regular-expression metacharacters prevent the generated filter from matching the declared header name, and the credential header is forwarded to an attacker-controlled redirect target. This issue is fixed in version 1.16.1.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/follow-redirects/follow-redirects/commit/080a76d0e125b37bf81717368a61d5dc37aa56c8 cve-icon cve-icon
https://github.com/follow-redirects/follow-redirects/releases/tag/v1.16.1 cve-icon cve-icon
https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-8r9p-f939-6h3c cve-icon cve-icon cve-icon
History

Mon, 19 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description follow-redirects is a Node.js HTTP and HTTPS client wrapper that automatically follows redirects. From 1.16.0 until 1.16.1, escapeRegex leaves valid header-name metacharacters unescaped in sensitiveHeaders. When an application declares a sensitive header whose name contains ^ or | and follows a cross-origin or HTTPS-to-HTTP redirect, unescaped regular-expression metacharacters prevent the generated filter from matching the declared header name, and the credential header is forwarded to an attacker-controlled redirect target. This issue is fixed in version 1.16.1.
Title follow-redirects sensitiveHeaders regex escaping can expose credential headers
Weaknesses CWE-185
CWE-200
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-19T18:00:16.343Z

Reserved: 2026-10-16T17:52:09.081Z

Link: CVE-2026-111755

cve-icon Vulnrichment

Updated: 2026-10-19T18:00:06.589Z

cve-icon NVD

Status : Received

Published: 2026-10-19T18:17:00.260

Modified: 2026-10-19T18:17:00.260

Link: CVE-2026-111755

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T18:30:02Z

Weaknesses