low2.3
CVE-2025-3864
Hackney fails to properly release HTTP connections to the pool
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| erlang | hackney | < 1.24.0 | 1.24.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://cert.pl/en/posts/2025/05/CVE-2025-3864/
- https://github.com/benoitc/hackney/commit/8f13ddac50d1626f8b9a47a08bd599e4efe1773d
- https://github.com/benoitc/hackney/issues/717
- https://github.com/advisories/GHSA-9fm9-hp7p-53mf
- https://nvd.nist.gov/vuln/detail/CVE-2025-3864
- https://cert.pl/en/posts/2025/05/CVE-2025-3864