CVE-2026-5136

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
21.9%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 2, 2026

Advisory Details (4)

Auto-updated Jul 1, 2026
Patch available. Sources: redhat.
redhat Patch Available

2452970 – (CVE-2026-5136) CVE-2026-5136 foreman: Foreman: Privilege escalation to administrator-level access via usergroup role assignment manipulation

https://bugzilla.redhat.com/show_bug.cgi?id=2452970
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-5136
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34368
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34367

Vendor Advisories for CVE-2026-5136(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatforeman-0:3.12.0.17-1.el9sat2026-07-01redhat
redhatforeman-0:3.16.0.17-1.el9sat2026-07-01redhat
redhatforeman-0:3.14.0.17-1.el9sat2026-07-01redhat
redhatforeman-0:3.18.0.7-1.el9sat2026-07-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 43× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 05:05 UTCEG score recompute
  2. 2026-07-07 05:05 UTCVendor advisory
  3. 2026-07-07 05:05 UTCGHSA enrichment
  4. 2026-07-06 17:00 UTCEG score recompute
  5. 2026-07-06 17:00 UTCVendor advisory
  6. 2026-07-06 17:00 UTCGHSA enrichment
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 04:55 UTCEG score recompute
  10. 2026-07-06 04:55 UTCVendor advisory
  11. 2026-07-06 04:55 UTCGHSA enrichment
  12. 2026-07-06 02:23 UTCEPSS rescore
  13. 2026-07-06 02:23 UTCEPSS rescore
  14. 2026-07-05 16:51 UTCEG score recompute
  15. 2026-07-05 16:51 UTCVendor advisory
  16. 2026-07-05 16:50 UTCGHSA enrichment
  17. 2026-07-05 04:45 UTCEG score recompute
  18. 2026-07-05 04:45 UTCVendor advisory
  19. 2026-07-05 04:45 UTCGHSA enrichment
  20. 2026-07-05 02:31 UTCEPSS rescore
  21. 2026-07-05 02:30 UTCEPSS rescore
  22. 2026-07-04 16:37 UTCEG score recompute
  23. 2026-07-04 16:37 UTCVendor advisory
  24. 2026-07-04 16:36 UTCGHSA enrichment
  25. 2026-07-04 06:31 UTCEPSS rescore
Show 18 more
  1. 2026-07-04 06:31 UTCEPSS rescore
  2. 2026-07-04 04:29 UTCEG score recompute
  3. 2026-07-04 04:29 UTCVendor advisory
  4. 2026-07-04 04:29 UTCGHSA enrichment
  5. 2026-07-03 16:22 UTCEG score recompute
  6. 2026-07-03 16:22 UTCVendor advisory
  7. 2026-07-03 16:22 UTCGHSA enrichment
  8. 2026-07-03 04:18 UTCEG score recompute
  9. 2026-07-03 04:18 UTCVendor advisory
  10. 2026-07-03 04:18 UTCGHSA enrichment
  11. 2026-07-02 16:12 UTCEG score recompute
  12. 2026-07-02 16:12 UTCVendor advisory
  13. 2026-07-02 16:12 UTCGHSA enrichment
  14. 2026-07-02 04:07 UTCEG score recompute
  15. 2026-07-02 04:07 UTCVendor advisory
  16. 2026-07-02 04:07 UTCGHSA enrichment
  17. 2026-07-01 16:04 UTCEG score recompute
  18. 2026-07-01 16:03 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-5136?
CVE-2026-5136 is a high vulnerability published on July 1, 2026. A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then…
When was CVE-2026-5136 disclosed?
CVE-2026-5136 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5136 actively exploited?
CVE-2026-5136 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-5136?
CVE-2026-5136 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-5136?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5136, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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