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CVE-2026-3012

Samba: group policy certificate enrollment uses http:// without validation PUBLISHED

Description (CNA)

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:4.23.5-109.el10_2 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:4.21.3-114.el10_0.1 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:4.19.4-16.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:4.19.4-16.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:4.15.5-16.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:4.15.5-16.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:4.17.5-7.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:4.17.5-7.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:4.23.5-10.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:4.23.5-10.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:4.17.5-105.el9_2.5 before *
Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:4.19.4-105.el9_4.4 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:4.21.3-14.el9_6.1 before *
Red Hat / Red Hat OpenShift Container Platform 4.12unaffected 412.86.202608241157-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.12unaffected 412.86.202609082051-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609080414-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609302032-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.14unaffected 414.92.202608172040-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.14unaffected 414.92.202609011250-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.15unaffected 415.92.202608180329-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.15unaffected 415.92.202609140326-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.16unaffected 416.94.202608150307-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.16unaffected 416.94.202609011112-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.17unaffected 417.94.202608250221-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.17unaffected 417.94.202609191027-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202608142238-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202609031320-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.19unaffected 4.19.9.6.202606241344-0 before *
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat Enterprise Linux 7affected

CWE

CWE-345

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.