Is CVE-2026-107203 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-107203 being exploited in the wild.

How severe is CVE-2026-107203?

Medium severity, with a CVSS score of 5.4, published 12 October 2026.

Which products and versions are affected?

Red Hat Foreman 1.7.0 and later.

Is there a fix for CVE-2026-107203?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-107203 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-107203?

Check whether you run Red Hat Foreman at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-107203: Foreman incorrect authorization in network interface API

CVE-2026-107203 · Severity: medium · CVSS 5.4 · Published 2026-10-12

Foreman is an infrastructure management platform that provisions and manages hosts and networks. A flaw in its network interface API allows a low-privileged user with limited host viewing permissions to read interface information from hosts they should not have access to, and potentially modify those interfaces if they also have edit permissions. An attacker could discover network configuration details or sabotage host network settings.

Technologies: Red Hat Foreman. Vendors: Red Hat.

Quick answers

Is CVE-2026-107203 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-107203 being exploited in the wild.
How severe is CVE-2026-107203?: Medium severity, with a CVSS score of 5.4, published 12 October 2026.
Which products and versions are affected?: Red Hat Foreman 1.7.0 and later.
Is there a fix for CVE-2026-107203?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-107203 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-107203?: Check whether you run Red Hat Foreman at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The domain and subnet interface API in Foreman fails to enforce search-limit filters on host permissions, returning interface data for all hosts on a domain or subnet regardless of what the caller can view. An attacker with search-limited host view permissions and network access can enumerate interface records (including MAC addresses and IP assignments) for unauthorized hosts, and with edit permissions can modify those interface fields. The flaw was introduced in Foreman 1.7.0 when nested interface routes were added.

Affected products

Red Hat Foreman 1.7.0 and later

Timeline

2026-10-12: disclosed

References

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