LOW

GHSA-9fm9-hp7p-53mf

Hackney fails to properly release HTTP connections to the pool

Details

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.

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Affected packages

Hex / hackney

Introduced in: 0 Fixed in: 1.24.0

Fix mix deps.update hackney

References

https://nvd.nist.gov/vuln/detail/CVE-2025-3864 [ADVISORY]
https://github.com/benoitc/hackney/issues/717 [WEB]
https://github.com/benoitc/hackney/commit/8f13ddac50d1626f8b9a47a08bd599e4efe1773d [WEB]
https://cert.pl/en/posts/2025/05/CVE-2025-3864 [WEB]
https://github.com/benoitc/hackney [PACKAGE]