Linux · SUSE Linux Enterprise · Security advisory · April 24, 2026

SUSE-SU-2026:1618-1: dnsdist security update

SUSE-SU-2026:1618-1, released April 24, 2026, fixes 7 CVEs in dnsdist (version 1.9.12-150700.3.9.1). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.2

Base score, 0 to 10

Highest EPSS

0.0107

65th percentile

Priority of the 7 CVEs

Patch now 0
                                Urgent 0
                                High 4
                                Routine 3

Fixed package versions

Product	Release	Fixed in
dnsdist	sles 15.7	1.9.12-150700.3.9.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-24028	dnsdist: crafted DNS packet parsed by Lua code using `newDNSPacketOverlay` can lead to an out-of-bounds read	8.2	0.0107	None reported
High	CVE-2026-24030	dnsdist: crafted DoQ and DoH3 queries can lead to unbounded memory allocation and DoS (bsc#1261240).	7.5	0.0056	None reported
High	CVE-2026-27853	dnsdist: crafted DNS responses sent to a DNSdist using certain methods in custom Lua code (`changeName`) can	7.5	0.0051	None reported
High	CVE-2026-27854	dnsdist: crafted DNS queries sent to a DNSdist using the `DNSQuestion:getEDNSOptions` method in custom Lua	7.5	0.0049	None reported
Routine	CVE-2026-0397	dnsdist: misconfiguration of the CORS policy can lead to information disclosure (bsc#1261237).	4.3	0.0017	None reported
Routine	CVE-2026-24029	dnsdist: disabled option on a DNS over HTTPS nghttp2 frontend allows clients to bypass ACLs and send DoH	6.5	0.0015	None reported
Routine	CVE-2026-0396	dnsdist: crafted DNS queries triggering domain-based dynamic rules can lead to HTML injection in the web	4.3	0.0014	None reported

Also fixes CVE-2026-24028

OPENSUSE-SU-2026:21015-1
dnsdist on opensuse-leap 16.0
SUSE-SU-2026:22319-1
dnsdist on sles 16.0
DEBIAN-CVE-2026-24028
dnsdist on Debian 13.5 (trixie), Debian 14

Vendor advisory

https://osv.dev/vulnerability/SUSE-SU-2026:1618-1

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