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CVE-2026-5138

27
FAUCET Score

A flaw was found in Foreman. An authenticated user with host-edit permissions could exploit a cross-tenant information disclosure vulnerability. This flaw occurs because the taxonomy_scope controller method does not properly validate organization and location IDs from nested request parameters, bypassing existing authorization checks. This allows the user to leak sensitive infrastructure metadata, including subnet topology, IP ranges, gateways, DNS servers, and VLAN IDs, from organizations and locations they are not authorized to access.

First published: Jul 1, 2026Last modified: Jul 1, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.16, < 6.16.10CPE matchmatch criteria
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*
>= 6.17, < 6.17.9CPE matchmatch criteria
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*
>= 6.18, < 6.18.7CPE matchmatch criteria
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*
>= 6.19, < 6.19.2CPE matchmatch criteria
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*
< 3.18.2CPE matchmatch criteria
cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 19th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatvendor investigatingvia nvd_reference
View patch

References

access.redhat.com / errata/RHSA-2026:34365
Vendor Advisory
access.redhat.com / errata/RHSA-2026:34366
Vendor Advisory
access.redhat.com / errata/RHSA-2026:34367
Vendor Advisory
access.redhat.com / errata/RHSA-2026:34368
Vendor Advisory
access.redhat.com / security/cve/CVE-2026-5138
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory