ALPINE-CVE-2026-81563

See a problem?
Please try reporting it to the source first.
Source
https://security.alpinelinux.org/vuln/CVE-2026-81563
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-81563.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2026-81563
Upstream
  • CVE-2026-81563
Published
2026-09-16T14:17:10Z
Modified
2026-09-29T12:17:54Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. 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.

References

Affected packages

Alpine:v3.22 / bind

Package

Name
bind
Purl
pkg:apk/alpine/bind?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.20.29-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-81563.json"

Alpine:v3.23 / bind

Package

Name
bind
Purl
pkg:apk/alpine/bind?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.20.29-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-81563.json"

Alpine:v3.24 / bind

Package

Name
bind
Purl
pkg:apk/alpine/bind?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.20.29-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-81563.json"