{"id":"GHSA-436v-jg82-p533","summary":"Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE","details":"Deserialization of untrusted data in the Azure AI Language Conversations Authoring client library for Python allows an unauthorized attacker to execute code over a network.","aliases":["CVE-2026-21531","PYSEC-2026-289"],"modified":"2026-06-29T12:26:35.828782941Z","published":"2026-02-10T18:30:42Z","database_specific":{"nvd_published_at":"2026-02-10T18:16:35Z","cwe_ids":["CWE-502"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2026-02-12T18:28:29Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21531"},{"type":"PACKAGE","url":"https://github.com/Azure/azure-sdk-for-python"},{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531"}],"affected":[{"package":{"name":"azure-ai-language-conversations-authoring","ecosystem":"PyPI","purl":"pkg:pypi/azure-ai-language-conversations-authoring"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.0b4"}]}],"versions":["1.0.0b1","1.0.0b2","1.0.0b3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-436v-jg82-p533/GHSA-436v-jg82-p533.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}