Vulnerability Description
Insufficiently Protected Credentials vulnerability in hackney in benoitc hackney allows a redirecting server to obtain the basic_auth and cookie credentials of a request via a same-host redirect to another scheme or port. With follow_redirect enabled, hackney:follow_redirect/10 in src/hackney.erl reissues the request to the Location target after hackney:maybe_strip_auth_on_redirect/3, which compared only the hostname of the current and the redirect URL. A redirect from https to http on the same host resent the Authorization and Cookie headers in cleartext, where an on-path attacker can read them, and a redirect to another port on the same host handed them to a different service. location_trusted forwards credentials to any target by design and is unchanged. This issue affects hackney: from 2.0.0 before 4.9.0.
Related Weaknesses (CWE)
References
- https://cna.erlef.org/cves/CVE-2026-113440.html
- https://github.com/benoitc/hackney/commit/6548384b22ea196023a1963e2967d5715b6d95
- https://github.com/benoitc/hackney/commit/8f944559bdb83da60b5c06f6cf6d8425912783
- https://github.com/benoitc/hackney/pull/979
- https://github.com/benoitc/hackney/releases/tag/4.9.0
- https://osv.dev/vulnerability/EEF-CVE-2026-113440
FAQ
What is CVE-2026-113440?
CVE-2026-113440 is a documented vulnerability. Insufficiently Protected Credentials vulnerability in hackney in benoitc hackney allows a redirecting server to obtain the basic_auth and cookie credentials of a request via a same-host redirect to an...
How severe is CVE-2026-113440?
CVSS scoring is not yet available for CVE-2026-113440. Check NVD for updates.
Is there a patch for CVE-2026-113440?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.