Is CVE-2026-113440 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-113440 being exploited in the wild.

How severe is CVE-2026-113440?

Informational severity, published 26 October 2026.

Which products and versions are affected?

Benoitc Hackney 2.0.0 before 4.9.0.

Is there a fix for CVE-2026-113440?

Yes: fixed in 4.9.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-113440 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-113440?

Check whether you run Benoitc Hackney at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-113440: hackney insufficiently protected credentials in redirect

CVE-2026-113440 · Severity: info · Published 2026-10-26

hackney is an HTTP client library used in Erlang applications. When follow_redirect is enabled, a malicious server can trick the client into sending authentication credentials and cookies in cleartext by redirecting traffic from HTTPS to HTTP on the same hostname, or to a different port on the same host, allowing an attacker to intercept sensitive credentials.

Technologies: Benoitc Hackney. Vendors: Benoitc.

Quick answers

Is CVE-2026-113440 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-113440 being exploited in the wild.
How severe is CVE-2026-113440?: Informational severity, published 26 October 2026.
Which products and versions are affected?: Benoitc Hackney 2.0.0 before 4.9.0.
Is there a fix for CVE-2026-113440?: Yes: fixed in 4.9.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-113440 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-113440?: Check whether you run Benoitc Hackney at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 4.9.0

Technical details

The vulnerability exists in hackney's redirect handling: hackney:follow_redirect/10 reissues requests to the Location target after calling hackney:maybe_strip_auth_on_redirect/3, which only compares hostnames but fails to validate scheme changes or port changes. Authorization and Cookie headers are preserved across same-host redirects from HTTPS to HTTP or to alternate ports, exposing credentials in cleartext or to unintended services. The location_trusted option forwards credentials to any target by design and is not affected by this fix.

Affected products

benoitc hackney 2.0.0 before 4.9.0

Timeline

2026-10-26: disclosed

References

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