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GHSA-xh9h-692f-mmg4

Withdrawn on 2025-08-29. GitHub withdrew this advisory; it no longer applies.

Withdrawn Advisory: Microsoft Knack ReDoS Vulnerability in the Introspection Module

Source: GitHub Advisory Database (reviewed) Low CVE-2025-54364

Packages

EcosystemPackageAffectedFixed in
PyPI knack <= 0.12.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

### Withdrawn Advisory This advisory has been withdrawn because the attack surface of this vulnerability is outside of Knack's intended functionality. The maintainer states the following: > These CVEs are invalid. Knack is a CLI framework used by [Azure CLI](https://github.com/Azure/azure-cli). It's a local library, not a web service. In addition, the regex is used to extract function and parameter docstrings from the source code. It is not used to match user input. Therefore, it does not expose any attack surface. There is no way to use it for ReDoS attack. This link is maintained to preserve external references. ### Original Description Microsoft Knack 0.12.0 allows Regular expression Denial of Service (ReDoS) in the knack.introspection module (issue 2 of 2).

References

External links from the advisory. They lead to third-party sites.