This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-81736 →

ALPINE-CVE-2026-81736

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend dispropor...

Original description

The description as published by the source.

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response.
This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Alpine:v3.22 bind

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.20.29-r0"}]}]

Alpine:v3.23 bind

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.20.29-r0"}]}]

Alpine:v3.24 bind

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.20.29-r0"}]}]

References

advisory security.alpinelinux.org