CVE-2026-5136

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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
8.8HIGHmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

Published

July 1, 2026

Last Modified

July 9, 2026

Advisory Details (4)

Auto-updated Jul 1, 2026
Patch available. Sources: redhat.
redhatMentions a patch (unverified)

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
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-5136
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:34368
redhatMentions a patch (unverified)
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 / EcosystemFix (by version range) / 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 7× in last 7d / 39× 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.

Showing the most recent 100 of 341 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-28 13:51 UTCEPSS rescore
  12. 2026-09-27 13:48 UTCEPSS rescore
  13. 2026-09-26 15:59 UTCEPSS rescore
  14. 2026-09-24 14:04 UTCEPSS rescore
  15. 2026-09-23 17:54 UTCEPSS rescore
  16. 2026-09-23 06:53 UTCEG score recompute
  17. 2026-09-23 06:53 UTCVendor advisory
  18. 2026-09-23 06:53 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 06:35 UTCEG score recompute
  22. 2026-09-18 06:35 UTCVendor advisory
  23. 2026-09-18 06:35 UTCGHSA enrichment
  24. 2026-09-17 19:31 UTCEPSS rescore
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-15 03:11 UTCEPSS rescore
  3. 2026-09-14 00:24 UTCEG score recompute
  4. 2026-09-14 00:24 UTCVendor advisory
  5. 2026-09-14 00:24 UTCGHSA enrichment
  6. 2026-09-13 16:47 UTCEPSS rescore
  7. 2026-09-13 09:09 UTCEG score recompute
  8. 2026-09-13 09:09 UTCVendor advisory
  9. 2026-09-13 09:09 UTCGHSA enrichment
  10. 2026-09-12 14:47 UTCEG score recompute
  11. 2026-09-12 14:47 UTCVendor advisory
  12. 2026-09-12 14:47 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 09:35 UTCEPSS rescore
  15. 2026-09-08 22:01 UTCEPSS rescore
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 14:35 UTCEG score recompute
  18. 2026-09-06 14:35 UTCVendor advisory
  19. 2026-09-06 14:35 UTCGHSA enrichment
  20. 2026-09-06 13:47 UTCEPSS rescore
  21. 2026-09-06 02:31 UTCEG score recompute
  22. 2026-09-06 02:31 UTCVendor advisory
  23. 2026-09-06 02:31 UTCGHSA enrichment
  24. 2026-09-04 05:07 UTCEPSS rescore
  25. 2026-09-02 14:12 UTCEPSS rescore
  26. 2026-09-01 13:54 UTCEPSS rescore
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-08-31 01:20 UTCEG score recompute
  29. 2026-08-31 01:20 UTCVendor advisory
  30. 2026-08-31 01:20 UTCGHSA enrichment
  31. 2026-08-30 19:17 UTCEPSS rescore
  32. 2026-08-30 13:13 UTCEG score recompute
  33. 2026-08-30 13:13 UTCVendor advisory
  34. 2026-08-30 13:13 UTCGHSA enrichment
  35. 2026-08-30 01:22 UTCEPSS rescore
  36. 2026-08-28 21:42 UTCEPSS rescore
  37. 2026-08-27 22:28 UTCEG score recompute
  38. 2026-08-27 22:28 UTCVendor advisory
  39. 2026-08-27 22:28 UTCGHSA enrichment
  40. 2026-08-27 14:25 UTCEPSS rescore
  41. 2026-08-26 14:46 UTCEPSS rescore
  42. 2026-08-25 13:49 UTCEPSS rescore
  43. 2026-08-24 23:02 UTCEG score recompute
  44. 2026-08-24 23:02 UTCVendor advisory
  45. 2026-08-24 23:01 UTCGHSA enrichment
  46. 2026-08-24 10:55 UTCEG score recompute
  47. 2026-08-24 10:55 UTCVendor advisory
  48. 2026-08-24 10:55 UTCGHSA enrichment
  49. 2026-08-23 20:29 UTCVendor advisory
  50. 2026-08-23 20:29 UTCGHSA enrichment
  51. 2026-08-23 08:25 UTCEG score recompute
  52. 2026-08-23 08:25 UTCVendor advisory
  53. 2026-08-23 08:25 UTCGHSA enrichment
  54. 2026-08-23 00:19 UTCEPSS rescore
  55. 2026-08-22 20:04 UTCVendor advisory
  56. 2026-08-22 20:04 UTCGHSA enrichment
  57. 2026-08-22 07:22 UTCEG score recompute
  58. 2026-08-22 07:22 UTCVendor advisory
  59. 2026-08-22 07:22 UTCGHSA enrichment
  60. 2026-08-21 23:49 UTCEPSS rescore
  61. 2026-08-21 17:17 UTCVendor advisory
  62. 2026-08-21 17:17 UTCGHSA enrichment
  63. 2026-08-21 04:59 UTCEG score recompute
  64. 2026-08-21 04:59 UTCVendor advisory
  65. 2026-08-21 04:59 UTCGHSA enrichment
  66. 2026-08-20 22:55 UTCEPSS rescore
  67. 2026-08-20 16:55 UTCVendor advisory
  68. 2026-08-20 16:55 UTCGHSA enrichment
  69. 2026-08-20 04:46 UTCEG score recompute
  70. 2026-08-20 04:46 UTCVendor advisory
  71. 2026-08-20 04:46 UTCGHSA enrichment
  72. 2026-08-19 17:04 UTCEPSS rescore
  73. 2026-08-19 09:55 UTCVendor advisory
  74. 2026-08-19 09:55 UTCGHSA enrichment
  75. 2026-08-18 21:00 UTCEG score recompute

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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 on July 1, 2026, with the most recent update on July 9, 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 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-5136?
CVE-2026-5136 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-5136?
A fix for CVE-2026-5136 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-5136 are linked in the Vendor Advisories panel on this page.

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