CVE-2026-47071

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.

• CWE-400

• https://cna.erlef.org/cves/CVE-2026-47071.htmlPatch, Third Party Advisory
• https://github.com/benoitc/hackney/commit/5ccdab725c561a6f03d05a51f2d0664f98236daePatch
• https://github.com/benoitc/hackney/security/advisories/GHSA-gp9c-pm5m-5cxrExploit, Patch, Vendor Advisory
• https://osv.dev/vulnerability/EEF-CVE-2026-47071Patch, Third Party Advisory
• https://github.com/benoitc/hackney/security/advisories/GHSA-gp9c-pm5m-5cxrExploit, Patch, Vendor Advisory

Published

May 25, 2026

Last Modified

Jul 24, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-47066Loop with Unreachable Exit Condition ('Infinite Loop') vulne…7.5
• CVE-2026-47067Allocation of Resources Without Limits or Throttling vulnera…7.5
• CVE-2026-47068Authorization Bypass Through User-Controlled Key vulnerabili…2.3
• CVE-2026-47069Improper Neutralization of CRLF Sequences ('CRLF Injection')…5.3
• CVE-2026-4707Incorrect boundary conditions in the Graphics: Canvas2D comp…7.5
• CVE-2026-47070Sensitive Data Exposure vulnerability in benoitc hackney all…6.1
• CVE-2026-47072Improper Neutralization of CRLF Sequences ('CRLF Injection')…7.5
• CVE-2026-47073Allocation of Resources Without Limits or Throttling vulnera…7.5
• CVE-2026-47074Improper Certificate Validation vulnerability in ex-aws ex_a…8.7
• CVE-2026-47075Improper Neutralization of CRLF Sequences vulnerability in b…7.5
• CVE-2026-47076Interpretation Conflict vulnerability in benoitc hackney all…6.5
• CVE-2026-47077Allocation of Resources Without Limits or Throttling vulnera…7.5