CVE-2020-35141: PYSEC-2026-1878 - FaucetSDN Ryu Denial of Service Vulnerability

CVE-2020-35141 · Severity: low · CVSS 3.1 · Published 2026-07-07

FaucetSDN Ryu Denial of Service Vulnerability

Technologies: ryu (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2020-35141 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-35141 being exploited in the wild.
How severe is CVE-2020-35141?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
ryu (PyPI) ECOSYSTEM:introduced=0,last_affected=4.34.
Is there a fix for CVE-2020-35141?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2020-35141?
Check whether you run ryu (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • ryu (PyPI) ECOSYSTEM:introduced=0,last_affected=4.34

Identifiers

  • CVE-2020-35141
  • GHSA-5x64-925v-h4gv
  • PYSEC-2026-1878

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