Secuno
ENNL
Book demo

CVE-2026-47071

Benoitc Hackney denial of service

7.5 HIGHPublic exploitEPSS 0.70%
  1. Published25 May 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Benoitc Hackney≥ 0.10.0 < 4.0.1

Remediation

Fixed in
Benoitc Hackney≥ 4.0.1

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-904418.1
A missing authorization vulnerability in the wgagent management daemon's session…
CVE-2026-866088.2
The WP Recipe Maker WordPress plugin before 10.8.2 does not have any authorisation…
CVE-2026-143218.2
The divi-dash WordPress plugin before 1.0.7 does not validate the source of the client…
CVE-2026-336258.8
LMDeploy is a toolkit for compressing, deploying, and serving large language models.…
CVE-2026-834658.2
Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business…
CVE-2026-834578.1
Vulnerability in the Oracle Demand Signal Repository product of Oracle E-Business Suite…

Frequently asked

Is CVE-2026-47071 being actively exploited?

CVE-2026-47071 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.70%.

How severe is CVE-2026-47071?

CVE-2026-47071 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2026-47071?

Affected products include Benoitc Hackney.

How do I fix CVE-2026-47071?

Upgrade affected software to a fixed version, for example Benoitc Hackney 4.0.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-47071 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.