Vulnerability Description
follow-redirects is a Node.js HTTP and HTTPS client wrapper that automatically follows redirects. From 1.16.0 until 1.16.2, the documented sensitiveHeaders option is checked with value instanceof Array, so an array created in another JavaScript realm is replaced with an empty list even though Array.isArray recognizes it. When a request then follows an attacker-controlled cross-origin redirect, a custom credential header named in that discarded list can be forwarded to the redirect destination. This issue is fixed in version 1.16.2.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/follow-redirects/follow-redirects/commit/b0a7751e9cd64cd8eeb6
- https://github.com/follow-redirects/follow-redirects/releases/tag/v1.16.2
- https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-mr
- https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-mr
FAQ
What is CVE-2026-116689?
CVE-2026-116689 is a vulnerability with a CVSS score of 5.9 (MEDIUM). follow-redirects is a Node.js HTTP and HTTPS client wrapper that automatically follows redirects. From 1.16.0 until 1.16.2, the documented sensitiveHeaders option is checked with value instanceof Arra...
How severe is CVE-2026-116689?
CVE-2026-116689 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116689?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.