CVE-2025-54363
Microsoft Knack 0.12.0 allows Regular expression Denial of Service (ReDoS) in the knack.introspection module. extract_full_summary_from_signature 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.
https://nvd.nist.gov/vuln/detail/CVE-2025-54363
Categories
CWE-1333 : Inefficient Regular Expression Complexity
Some regular expression engines have a feature called "backtracking". If the token cannot match, the engine "backtracks" to a position that may result in a different token that can match.
References
cve@mitre.org
CPE
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REMEDIATION
EXPLOITS
Exploit-db.com
| id | description | date | |
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| No known exploits | |||
POC Github
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| No known exploits |
Other Nist (github, ...)
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| No known exploits |
CAPEC
Common Attack Pattern Enumerations and Classifications
| id | description | severity |
|---|---|---|
| 492 | Regular Expression Exponential Blowup |
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