CVE-2025-3864

LOW EPSS 49.5%
Published May 28, 20251y ago · Modified Jun 17, 20262w ago
2.3 CVSS 4.0
Low
Find Similar
Published May 28, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
49.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-772

References 3

  • cert.pl https://cert.pl/en/posts/2025/05/CVE-2025-3864/
  • github.com https://github.com/benoitc/hackney/commit/8f13ddac50d1626f8b9a47a08bd599e4efe1773d
  • github.com https://github.com/benoitc/hackney/issues/717

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.