CVE-2025-3864

HEX Hackney < 1.24.0 - Resource Leak

Title source: rule

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.

Scores

EPSS 0.0009
EPSS Percentile 24.8%

Classification

CWE
CWE-772
Status draft

Affected Products (1)

Hex/hackney < 1.24.0Hex

Timeline

Published May 28, 2025
Tracked Since Feb 18, 2026