GHSA-436v-jg82-p533critical9.8
Azure AI Language Authoring Elevation of Privilege Vulnerability can Lead to RCE
The advisory, in context
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.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Ecosystem versions
Earlier releases before 1.0.0b4
Fixed in 1.0.0b4
3 explicitly affected versions
1.0.0b1, 1.0.0b2, 1.0.0b3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.0b4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0b1",
"1.0.0b2",
"1.0.0b3"
]
}References
- https://nvd.nist.gov/vuln/detail/CVE-2026-21531
- https://github.com/Azure/azure-sdk-for-python
- https://github.com/pypa/advisory-database/tree/main/vulns/azure-ai-language-conversations-authoring/PYSEC-2026-289.yaml
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21531
- https://pypi.org/project/azure-ai-language-conversations-authoring