CVE-2026-12245

Name
CVE-2026-12245
Description
NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.
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/nsd/CVE-2026-12245.txt

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:* nsd >= 4.13.0 < 4.14.3

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
nsd edge-main 4.14.3-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
nsd edge-main 4.14.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.13.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.24-main 4.14.3-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
nsd 3.24-main 4.14.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.23-main 4.13.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable