{"id":"AZL-75219","summary":"CVE-2026-1299 affecting package python3 for versions less than 3.9.19-18","details":"The \nemail module, specifically the \"BytesGenerator\" class, didn’t properly quote newlines for email headers when \nserializing an email message allowing for header injection when an email\n is serialized. This is only applicable if using \"LiteralHeader\" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in \"BytesGenerator\".","modified":"2026-04-01T05:22:50.129932Z","published":"2026-01-23T17:16:12Z","upstream":["CVE-2026-1299"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1299"}],"affected":[{"package":{"name":"python3","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/python3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.19-18"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-75219.json"}}],"schema_version":"1.7.5"}