Insufficient Verification of Data Authenticity Affecting samba-devel package, versions <0:4.19.4-16.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.23% (12th percentile)

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  • Snyk IDSNYK-ALMALINUX8-SAMBADEVEL-17146608
  • published4 Jun 2026
  • disclosed10 Jun 2026

Introduced: 4 Jun 2026

CVE-2026-3012  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 samba-devel to version 0:4.19.4-16.el8_10 or higher.
This issue was patched in ALSA-2026:22644.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-devel package and not the samba-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

References

CVSS Base Scores

version 3.1