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CVE-2026-113440VulnerabilityPublished

hackney · Insufficiently Protected Credentials Vulnerability

Source GCVE Database

0
Authoritative record:CVE-2026-113440· Medium 6.0

Not known to be exploited · CVSS 6.0 Medium : upgrade to 4.9.0 when convenient.

Data as of 26 Oct 2026, 17:05 UTC

CVSS 4.0 base score
6.0Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.9.0, 6548384b22ea196023a1963e2967d5715b6d9564
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade hackney to 4.9.0; hackney to 6548384b22ea196023a1963e2967d5715b6d9564.

Affected software

ProductAffectedFixed in
benoitchackneyAffected
  • >=2.0.0 <4.9.0
Fixed in
  • 4.9.0
hackneybenoitc/hackneyAffected
  • ≥ 8f944559bdb83da60b5c06f6cf6d842591278364, < 6548384b22ea196023a1963e2967d5715b6d9564
Fixed in
  • 6548384b22ea196023a1963e2967d5715b6d9564
Hexhackneypkg:hex/hackneyOther threatsAffected
  • >=2.0.0 <4.9.0
Fixed in
  • 4.9.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in hackney version 4.9.0 and later. Users should upgrade to version 4.9.0 or newer to remediate this vulnerability. Until upgraded, users should consider disabling follow_redirect or carefully controlling redirect behavior to avoid redirects that downgrade security (e.g., HTTPS to HTTP) or redirect to different ports on the same host. The location_trusted option behavior remains unchanged and should be used with caution.

Description

A vulnerability in the hackney HTTP client library (versions 2.0.0 up to but not including 4.9.0) allows credentials such as basic_auth and cookies to be leaked during redirects. When follow_redirect is enabled, redirects from HTTPS to HTTP or to a different port on the same host resend sensitive Authorization and Cookie headers in cleartext or to unintended services. This can expose credentials to on-path attackers.

References

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