Critical: unbound security update
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.
ALSA-2026:70754
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALSA-2026:70754
python3-unbound
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.16.2-5.14.el8_10.4
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
unbound
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.16.2-5.14.el8_10.4
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
unbound-devel
Source reference: /affected/2/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.16.2-5.14.el8_10.4
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
unbound-libs
Source reference: /affected/3/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 1.16.2-5.14.el8_10.4
Source reference:
/affected/3/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.2-5.14.el8_10.4"
}
]
}
],
"package": {
"name": "python3-unbound",
"purl": "pkg:rpm/almalinux/python3-unbound",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.2-5.14.el8_10.4"
}
]
}
],
"package": {
"name": "unbound",
"purl": "pkg:rpm/almalinux/unbound",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.2-5.14.el8_10.4"
}
]
}
],
"package": {
"name": "unbound-devel",
"purl": "pkg:rpm/almalinux/unbound-devel",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.2-5.14.el8_10.4"
}
]
}
],
"package": {
"name": "unbound-libs",
"purl": "pkg:rpm/almalinux/unbound-libs",
"ecosystem": "AlmaLinux:8"
},
"database_specific": {
"source": "https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #13769 · Revision 1
- Added to Heist Feed
- Publisher date