SUSE-SU-2026:4620-1

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Source
https://www.suse.com/support/update/announcement/2026/suse-su-20264620-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json
JSON Data
https://api.osv.dev/v1/vulns/SUSE-SU-2026:4620-1
Upstream
CVE (10)
Related
CVE (10)
Published
2026-10-12T07:23:36Z
Modified
2026-10-13T10:30:05Z
Summary
Security update for unbound
Details

This update for unbound fixes the following issues:

  • CVE-2026-77860: 'serve-expired' can bypass Unbound 'wait-limit' (bsc#1280403).
  • CVE-2026-77955: Possible ZONEMD verification bypass window (bsc#1280404).
  • CVE-2026-78227: Use-after-free in DoQ stream output buffer on reset re-transmission (bsc#1280405).
  • CVE-2026-80225: Possible degradation of service from continuous queries on the same TCP/DoT connection (bsc#1280406).
  • CVE-2026-81634: Possible heap buffer overflow during DNSSEC canonicalization (bsc#1280409).
  • CVE-2026-81642: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY (bsc#1280411).
  • CVE-2026-82717: CNAME synthesis could lead to heap corruption (bsc#1280412).
  • CVE-2026-82720: Use-after-free in DoH stream cleanup code path (bsc#1280413).
  • CVE-2026-85501: Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC (bsc#1280414).

Changes for libunbound-devel-mini:

  • Updated to version 1.26.1

Changes for unbound:

  • Updated to version 1.26.1
References

Affected packages

SUSE:Linux Enterprise Module for Basesystem 15 SP7
unbound

Package

Name
unbound
Purl
pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.1-150600.23.24.1

Ecosystem specific 

{
    "binaries":  [
        {
            "libunbound8":  "1.26.1-150600.23.24.1",
            "unbound-anchor":  "1.26.1-150600.23.24.1",
            "unbound-devel":  "1.26.1-150600.23.24.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"
SUSE:Linux Enterprise Module for Package Hub 15 SP7
unbound

Package

Name
unbound
Purl
pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.1-150600.23.24.1

Ecosystem specific 

{
    "binaries":  [
        {
            "unbound":  "1.26.1-150600.23.24.1",
            "unbound-python":  "1.26.1-150600.23.24.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"
SUSE:Linux Enterprise Server 15 SP6-LTSS
unbound

Package

Name
unbound
Purl
pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.1-150600.23.24.1

Ecosystem specific 

{
    "binaries":  [
        {
            "libunbound8":  "1.26.1-150600.23.24.1",
            "unbound-anchor":  "1.26.1-150600.23.24.1",
            "unbound-devel":  "1.26.1-150600.23.24.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
unbound

Package

Name
unbound
Purl
pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.1-150600.23.24.1

Ecosystem specific 

{
    "binaries":  [
        {
            "libunbound8":  "1.26.1-150600.23.24.1",
            "unbound-anchor":  "1.26.1-150600.23.24.1",
            "unbound-devel":  "1.26.1-150600.23.24.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"