Resource Exhaustion Affecting idna package, versions [,3.7)
Snyk CVSS
Attack Complexity
Low
Availability
High
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Test your applications- Snyk ID SNYK-PYTHON-IDNA-6597975
- published 12 Apr 2024
- disclosed 11 Apr 2024
- credit Guido Vranken
Introduced: 11 Apr 2024
New CVE-2024-3651 Open this link in a new tabHow to fix?
Upgrade idna to version 3.7 or higher.
Overview
Affected versions of this package are vulnerable to Resource Exhaustion via the idna.encode function. An attacker can consume significant resources and potentially cause a denial-of-service by supplying specially crafted arguments to this function.
Note: This is triggered by arbitrarily large inputs that would not occur in normal usage but may be passed to the library assuming there is no preliminary input validation by the higher-level application.