PT-2026-53384 · Pypi · Azure-Ai-Language-Conversations-Authoring

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Related Identifiers

PYSEC-2026-289

Affected Products

Azure-Ai-Language-Conversations-Authoring

References · 6

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21531 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-289 · Vendor Advisory
• https://github.com/Azure/azure-sdk-for-python · Note
• https://pypi.org/project/azure-ai-language-conversations-authoring · Note
• https://github.com/advisories/GHSA-436v-jg82-p533 · Note