{"id":"AZL-11439","summary":"CVE-2022-45061 affecting package python3 for versions less than 3.9.14-5","details":"An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.","modified":"2026-04-01T05:06:59.509047Z","published":"2022-11-09T07:15:09Z","upstream":["CVE-2022-45061"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-45061"}],"affected":[{"package":{"name":"python3","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/python3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.14-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-11439.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}