OESA-2026-4130

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4130
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-4130
Upstream
Published
2026-09-25T01:28:51Z
Modified
2026-09-25T01:45:13Z
Severity
  • 9.1 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Red CVSS Calculator
Summary
unbound security update
Details

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most platforms such as FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows. Unbound is a totally free, open source software under the BSD license. It doesn't make custom builds or provide specific features to paying customers only.

Security Fix(es):

In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service and possible remote code execution as a result of digesting DNSKEYs. A DNSKEY with an owner compression pointer to its own RDATA can overflow the digest buffer. Remote code execution is possible through attacker controlled data. An adversary can exploit the vulnerability by controlling a malicious zone and querying a vulnerable Unbound.(CVE-2026-81642)

Database specific 
{
    "severity":  "Critical"
}
References

Affected packages

openEuler:20.03-LTS-SP4
unbound

Package

Name
unbound
Purl
pkg:rpm/openEuler/unbound&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.11.0-27.oe2003sp4

Ecosystem specific 

{
    "aarch64":  [
        "python3-unbound-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-debuginfo-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-debugsource-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-devel-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-help-1.11.0-27.oe2003sp4.aarch64.rpm",
        "unbound-libs-1.11.0-27.oe2003sp4.aarch64.rpm"
    ],
    "src":  [
        "unbound-1.11.0-27.oe2003sp4.src.rpm"
    ],
    "x86_64":  [
        "python3-unbound-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-debuginfo-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-debugsource-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-devel-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-help-1.11.0-27.oe2003sp4.x86_64.rpm",
        "unbound-libs-1.11.0-27.oe2003sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json"
openEuler:22.03-LTS-SP4
unbound

Package

Name
unbound
Purl
pkg:rpm/openEuler/unbound&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.13.2-27.oe2203sp4

Ecosystem specific 

{
    "aarch64":  [
        "python3-unbound-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-anchor-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-debuginfo-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-debugsource-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-devel-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-help-1.13.2-27.oe2203sp4.aarch64.rpm",
        "unbound-libs-1.13.2-27.oe2203sp4.aarch64.rpm"
    ],
    "src":  [
        "unbound-1.13.2-27.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "python3-unbound-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-anchor-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-debuginfo-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-debugsource-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-devel-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-help-1.13.2-27.oe2203sp4.x86_64.rpm",
        "unbound-libs-1.13.2-27.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json"
openEuler:24.03-LTS-SP1
unbound

Package

Name
unbound
Purl
pkg:rpm/openEuler/unbound&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.17.1-21.oe2403sp1

Ecosystem specific 

{
    "aarch64":  [
        "python3-unbound-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-help-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp1.aarch64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp1.aarch64.rpm"
    ],
    "src":  [
        "unbound-1.17.1-21.oe2403sp1.src.rpm"
    ],
    "x86_64":  [
        "python3-unbound-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-help-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp1.x86_64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json"
openEuler:24.03-LTS-SP3
unbound

Package

Name
unbound
Purl
pkg:rpm/openEuler/unbound&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.17.1-21.oe2403sp3

Ecosystem specific 

{
    "aarch64":  [
        "python3-unbound-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-help-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp3.aarch64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp3.aarch64.rpm"
    ],
    "src":  [
        "unbound-1.17.1-21.oe2403sp3.src.rpm"
    ],
    "x86_64":  [
        "python3-unbound-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-help-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp3.x86_64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp3.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json"
openEuler:24.03-LTS-SP4
unbound

Package

Name
unbound
Purl
pkg:rpm/openEuler/unbound&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.17.1-21.oe2403sp4

Ecosystem specific 

{
    "aarch64":  [
        "python3-unbound-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-help-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp4.aarch64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp4.aarch64.rpm"
    ],
    "src":  [
        "unbound-1.17.1-21.oe2403sp4.src.rpm"
    ],
    "x86_64":  [
        "python3-unbound-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-anchor-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-debuginfo-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-debugsource-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-devel-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-help-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-libs-1.17.1-21.oe2403sp4.x86_64.rpm",
        "unbound-utils-1.17.1-21.oe2403sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4130.json"