AZL-87096

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Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-87096.json

JSON Data

https://api.osv.dev/v1/vulns/AZL-87096

Upstream

CVE-2026-5946

Published

2026-05-20T13:16:40Z

Modified

2026-08-28T17:47:37Z

Summary

CVE-2026-5946 affecting package bind for versions less than 9.20.23-1

Details

Multiple flaws have been identified in named related to the handling of DNS messages whose CLASS is not Internet (IN) — for example, CHAOS or HESIOD, or DNS messages that specify meta-classes (ANY or NONE) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (UPDATE), zone change notifications (NOTIFY), or processing of IN-specific record types in non-IN data — can cause assertion failures in named. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-5946

Affected packages

Azure Linux:3 / bind

Package

Name: bind
Purl: pkg:rpm/azure-linux/bind

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

9.20.23-1

Database specific

source

"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-87096.json"