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CVE-2026-3012 Samba: group policy certificate enrollment uses http:// without validation

🗓️ 27 May 2026 10:02:21Reported by redhatType 
vulnrichment
 vulnrichment🔗 github.com👁 18 Views

An attacker can exploit Samba's certificate auto-enrollment over an unencrypted web traffic to install a malicious CA certificate into the local trust store.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB		CVE-2026-3012
27 May 202610:02
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : libnetapi, libnetapi-devel, libsmbclient (ALAS2023-2026-1899)
16 Jul 202600:00
–nessus
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0152: samba (ALINUX3-SA-2026:0152)
16 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : samba (ALSA-2026:22644)
3 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 10 : samba (ALSA-2026:22963)
4 Jun 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 9 : samba (ALSA-2026:25049)
11 Jun 202600:00
–nessus
nessus
Tenable Nessus		Debian dla-4692 : ctdb - security update
21 Jul 202600:00
–nessus
nessus
Tenable Nessus		Debian dsa-6297 : ctdb - security update
26 May 202600:00
–nessus
nessus
Tenable Nessus		Fedora 44 : freeipa / samba (2026-7567819345)
2 Jun 202600:00
–nessus
nessus
Tenable Nessus		Fedora 45 : freeipa / samba (2026-9b08621bdc)
29 May 202600:00
–nessus
Rows per page
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10 Sep 2026 09:22Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18
EPSS0.00261
SSVC
CWE-345
sambacertificate enrollmentgroup policyunencrypted web traffictrust storemalicious certificate
18