CVE-2026-10846

Name
CVE-2026-10846
Description
NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
sep@nlnetlabs.nl https://www.nlnetlabs.nl/downloads/ldns/CVE-2026-10846.txt
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2026/06/10/2

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:nlnetlabs:ldns:*:*:*:*:*:*:*:* ldns >= 1.2.0 < 1.9.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
ldns edge-main 1.9.2-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
ldns edge-main 1.8.4-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns edge-main 1.8.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns edge-main 1.7.0-r1 None possibly vulnerable
ldns 3.24-main 1.8.4-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.23-main 1.8.4-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.22-main 1.8.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.22-main 1.7.0-r1 None possibly vulnerable
ldns 3.21-main 1.8.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.21-main 1.7.0-r1 None possibly vulnerable
ldns 3.20-main 1.8.3-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.20-main 1.7.0-r1 None possibly vulnerable
ldns 3.19-main 1.8.3-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
ldns 3.19-main 1.7.0-r1 None possibly vulnerable