ALSA-2026:70754

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Import Source
https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALSA-2026:70754
Related
Published
2026-09-23T00:00:00Z
Modified
2026-09-24T12:41:46Z
Summary
Critical: unbound security update
Details

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.

Security Fix(es):

  • unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis (CVE-2026-82717)
  • unbound: Unbound: Heap buffer overflow via malicious DNSSEC response (CVE-2026-81634)
  • unbound: Unbound: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY (CVE-2026-81642)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

Affected packages

AlmaLinux:8 / python3-unbound

Package

Name
python3-unbound
Purl
pkg:rpm/almalinux/python3-unbound

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.14.el8_10.4

Database specific

source
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"

AlmaLinux:8 / unbound

Package

Name
unbound
Purl
pkg:rpm/almalinux/unbound

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.14.el8_10.4

Database specific

source
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"

AlmaLinux:8 / unbound-devel

Package

Name
unbound-devel
Purl
pkg:rpm/almalinux/unbound-devel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.14.el8_10.4

Database specific

source
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"

AlmaLinux:8 / unbound-libs

Package

Name
unbound-libs
Purl
pkg:rpm/almalinux/unbound-libs

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.14.el8_10.4

Database specific

source
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"