CVE-2026-38974 Security feature bypass in n/a

Medium 5.3 Published Updated

Dulwich library fails to verify SSH host keys, allowing attackers to perform man-in-the-middle attacks during Git operations.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-38974?

CVE-2026-38974 is a medium-severity vulnerability in n/a, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramiko_vendor.py.

Weakness: CWE-295

Which versions are affected by CVE-2026-38974?

Linux distribution packages (12)
python3-dulwich SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Module for Basesystem 15 SP7All versions0.20.24-150400.11.1
python-dulwich SUSE:Linux Enterprise Module for Public Cloud 12All versions0.18.5-4.9.1
python3-dulwich SUSE:Linux Enterprise Server 15 SP4-LTSSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Server 15 SP5-LTSSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Server 15 SP6-LTSSAll versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Server for SAP Applications 15 SP4All versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Server for SAP Applications 15 SP5All versions0.20.24-150400.11.1
python3-dulwich SUSE:Linux Enterprise Server for SAP Applications 15 SP6All versions0.20.24-150400.11.1

How do I fix CVE-2026-38974?

Upgrade to a fixed version.

Is CVE-2026-38974 being exploited?

There is no known exploitation of CVE-2026-38974 in the wild and no public exploit code.

Sources

Also known as AZL-92481, CLEANSTART-2026-MJ22744, DEBIAN-CVE-2026-38974, GHSA-h7fr-r783-5g99, SUSE-SU-2026:3408-1, SUSE-SU-2026:3459-1 and 1 more.

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