Hackney fails to properly release HTTP connections to the pool after handling 307 Temporary Redirect responses. Remote attackers can exploit this to exhaust connection pools, causing denial of service in applications using the library.
Fix for this issue has been included in 1.24.0 release.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-16328 Hackney fails to properly release HTTP connections to the pool
Github GHSA Github GHSA GHSA-9fm9-hp7p-53mf Hackney fails to properly release HTTP connections to the pool
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 28 May 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 28 May 2025 11:30:00 +0000

Type Values Removed Values Added
Description Hackney fails to properly release HTTP connections to the pool after handling 307 Temporary Redirect responses. Remote attackers can exploit this to exhaust connection pools, causing denial of service in applications using the library. Fix for this issue has been included in 1.24.0 release.
Title Connection pool exhaustion in hackney
Weaknesses CWE-772
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2025-05-28T13:17:57.950Z

Reserved: 2025-04-22T08:43:49.641Z

Link: CVE-2025-3864

cve-icon Vulnrichment

Updated: 2025-05-28T13:17:51.796Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-05-28T12:15:19.760

Modified: 2025-05-28T15:01:30.720

Link: CVE-2025-3864

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.