VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 4.3 mediumEPSS 0.4% probability of exploitation in 30 daysFound by AI: AISLE
Red Hat

CVE-2026-5138: Foreman: foreman: information disclosure via improper validation of nested request parameters

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
0.4%

EPSS score, percentile 31.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
4.3 Medium

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (4)

Which versions are affected?

Unaffected 0:3.12.0.17-1.el8sat; 0:3.12.0.17-1.el9sat; 0:3.14.0.17-1.el9sat; 0:3.16.0.17-1.el9sat; 0:3.18.0.7-1.el9sat

Versions by product

Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

As listed in the CVE record.

Red Hat Red Hat Satellite 6.16 for RHEL 8
StatusVersions
Unaffected0:3.12.0.17-1.el8sat

Versions not listed are: affected.

Red Hat Red Hat Satellite 6.16 for RHEL 9
StatusVersions
Unaffected0:3.12.0.17-1.el9sat

Versions not listed are: affected.

Red Hat Red Hat Satellite 6.17 for RHEL 9
StatusVersions
Unaffected0:3.14.0.17-1.el9sat

Versions not listed are: affected.

Red Hat Red Hat Satellite 6.18 for RHEL 9
StatusVersions
Unaffected0:3.16.0.17-1.el9sat

Versions not listed are: affected.

Red Hat Red Hat Satellite 6.19 for RHEL 9
StatusVersions
Unaffected0:3.18.0.7-1.el9sat

Versions not listed are: affected.

Red Hat Red Hat Satellite 6
StatusVersions

Versions not listed are: affected.

Versions the record lists as unaffected: 0:3.12.0.17-1.el8sat, 0:3.12.0.17-1.el9sat, 0:3.14.0.17-1.el9sat, 0:3.16.0.17-1.el9sat, 0:3.18.0.7-1.el9sat.

Source: CVE List, as of . About the data.

About this vulnerability

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…

Summary: CVE record, as of .

  • CISA has not added CVE-2026-5138 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
  • The CVE record was published on 1 Jul 2026.
  • The CVE record carries a CVSS v3.1 base score of 4.3 (Medium), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.4% (percentile 31.9), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
  • CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact partial.
  • The credits in the CVE record name AISLE as finder.

Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.

Description

Foreman: foreman: information disclosure via improper validation of nested request parameters

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.

Source: CVE List, as of . About the data.

Weakness

CWE-639

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published

References

2

Known exploited Red Hat vulnerabilities

  • CVE-2015-3246: Red Hat Libuser Race Condition Vulnerability (added )
  • CVE-2015-5287: Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability (added )
  • CVE-2018-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability (added )
  • CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability (added )
  • CVE-2021-4034: Red Hat Polkit Out-of-Bounds Read and Write Vulnerability (added )