HIGH7.5

PYSEC-2026-1876

FaucetSDN Ryu Denial of Service Vulnerability

Details

An issue was discovered in `OFPBundleCtrlMsg` in `parser.py` in FaucetSDN Ryu version 4.34, allows remote attackers to cause a denial of service (DoS) (infinite loop).

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/ryu

Introduced in: 0

No fixed version published yet for ryu (pip). Pin to a known-safe version or switch to an alternative.

References

https://nvd.nist.gov/vuln/detail/CVE-2020-35139[ADVISORY]
https://github.com/faucetsdn/ryu/issues/118[WEB]
https://github.com/faucetsdn/ryu[PACKAGE]
https://pypi.org/project/ryu[PACKAGE]
https://github.com/advisories/GHSA-4987-5p3p-9r27[ADVISORY]