🛡️ CVE-2026-47071
⚪ Unknown ✅ No Known Exploit CWE-400 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Uncontrolled Resource Consumption vulnerability in benoitc hackney allows Flooding. The SOCKS5 transport in src/hackney_socks5.erl correctly applies the caller-supplied timeout to the SOCKS5 negotiation phase, but then upgrades the connection to TLS using the two-argument form ssl:connect/2, which defaults to an infinite timeout. The Timeout value is in scope at the call site but is not forwarded. A hostile SOCKS5 proxy that completes the SOCKS5 handshake normally and then goes silent (or sends a partial TLS ServerHello and stalls) will cause the connecting process to block indefinitely, regardless of the connect_timeout or recv_timeout options supplied by the caller. This issue affects hackney: from 0.10.0 before 4.0.1.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2026-05-25
Updated 2026-06-15
Modified 2026-05-27

Affected Packages

Software From version Fixed in
hackney — —
unknown — —

Similar Threats

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