CVE-2025-54364

Microsoft Knack 0.12.0 allows Regular expression Denial of Service (ReDoS) in the knack.introspection module. option_descriptions employs an inefficient regular expression pattern: "\s(:param)\s+(.+?)\s:(.*)" that is susceptible to catastrophic backtracking when processing crafted docstrings containing a large volume of whitespace without a terminating colon. An attacker who can control or inject docstring content into affected applications can trigger excessive CPU consumption. This software is used by Azure CLI.

CVSS

No CVSS.

References

Link	Resource
https://github.com/microsoft/knack
https://www.vulncheck.com/advisories/microsoft-knack-python-package-regular-expression-dos

Configurations

No configuration.

History

No history.

Information

Published : 2025-08-20 03:15

Updated : 2025-08-21 16:15

NVD link : CVE-2025-54364

Mitre link : CVE-2025-54364

CVE.ORG link : CVE-2025-54364

JSON object : View

Products Affected

No product.

CWE

CWE-1333

Inefficient Regular Expression Complexity

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