GitHub Advisoryadvisory · PyPI
GHSA-436v-jg82-p533 Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE
CRITICAL
Official page ↗
- Aliases
- CVE-2026-21531
- Ecosystem
- PyPI
- Packages
- azure-ai-language-conversations-authoring
- Severity
- Critical
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
- Reviewed
- 2026-02-12
Affected packages
• PyPI azure-ai-language-conversations-authoring: < 1.0.0b4 → fixed in 1.0.0b4
Description
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.
Related
Alias · CVE (1)
- CVE-2026-21531 Deserialization of untrusted data in Azure SDK allows an unauthorized attacker to execute code over a network. vulnerability
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-21531 advisory
- https://github.com/Azure/azure-sdk-for-python package
- https://github.com/pypa/advisory-database/tree/main/vulns/azure-ai-language-conversations-authoring/PYSEC-2026-289.yaml web
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531 web
- https://pypi.org/project/azure-ai-language-conversations-authoring web