CVE-2026-21531: Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE
(updated )
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.
References
- github.com/advisories/GHSA-436v-jg82-p533
- github.com/pypa/advisory-database/tree/main/vulns/azure-ai-language-conversations-authoring/PYSEC-2026-289.yaml
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531
- nvd.nist.gov/vuln/detail/CVE-2026-21531
- pypi.org/project/azure-ai-language-conversations-authoring
Code Behaviors & Features
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