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
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 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(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 9, 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 33× in last 7d / 165× 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 275 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 23:02 UTCEG score recompute
  3. 2026-08-24 23:02 UTCVendor advisory
  4. 2026-08-24 23:01 UTCGHSA enrichment
  5. 2026-08-24 10:55 UTCEG score recompute
  6. 2026-08-24 10:55 UTCVendor advisory
  7. 2026-08-24 10:55 UTCGHSA enrichment
  8. 2026-08-23 20:29 UTCVendor advisory
  9. 2026-08-23 20:29 UTCGHSA enrichment
  10. 2026-08-23 08:25 UTCEG score recompute
  11. 2026-08-23 08:25 UTCVendor advisory
  12. 2026-08-23 08:25 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-22 20:04 UTCVendor advisory
  15. 2026-08-22 20:04 UTCGHSA enrichment
  16. 2026-08-22 07:22 UTCEG score recompute
  17. 2026-08-22 07:22 UTCVendor advisory
  18. 2026-08-22 07:22 UTCGHSA enrichment
  19. 2026-08-21 23:49 UTCEPSS rescore
  20. 2026-08-21 17:17 UTCVendor advisory
  21. 2026-08-21 17:17 UTCGHSA enrichment
  22. 2026-08-21 04:59 UTCEG score recompute
  23. 2026-08-21 04:59 UTCVendor advisory
  24. 2026-08-21 04:59 UTCGHSA enrichment
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 16:55 UTCVendor advisory
  2. 2026-08-20 16:55 UTCGHSA enrichment
  3. 2026-08-20 04:46 UTCEG score recompute
  4. 2026-08-20 04:46 UTCVendor advisory
  5. 2026-08-20 04:46 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 09:55 UTCVendor advisory
  8. 2026-08-19 09:55 UTCGHSA enrichment
  9. 2026-08-18 21:00 UTCEG score recompute
  10. 2026-08-18 21:00 UTCVendor advisory
  11. 2026-08-18 21:00 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 04:51 UTCEG score recompute
  14. 2026-08-18 04:51 UTCVendor advisory
  15. 2026-08-18 04:50 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 12:26 UTCVendor advisory
  18. 2026-08-17 12:26 UTCGHSA enrichment
  19. 2026-08-17 00:20 UTCEG score recompute
  20. 2026-08-17 00:20 UTCVendor advisory
  21. 2026-08-17 00:20 UTCGHSA enrichment
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 12:16 UTCEG score recompute
  24. 2026-08-16 12:16 UTCVendor advisory
  25. 2026-08-16 12:16 UTCGHSA enrichment
  26. 2026-08-16 00:13 UTCVendor advisory
  27. 2026-08-16 00:13 UTCGHSA enrichment
  28. 2026-08-15 12:09 UTCEG score recompute
  29. 2026-08-15 12:09 UTCVendor advisory
  30. 2026-08-15 12:09 UTCGHSA enrichment
  31. 2026-08-15 01:30 UTCEPSS rescore
  32. 2026-08-15 00:05 UTCVendor advisory
  33. 2026-08-15 00:05 UTCGHSA enrichment
  34. 2026-08-14 12:01 UTCVendor advisory
  35. 2026-08-14 12:01 UTCGHSA enrichment
  36. 2026-08-13 23:58 UTCEG score recompute
  37. 2026-08-13 23:58 UTCVendor advisory
  38. 2026-08-13 23:58 UTCGHSA enrichment
  39. 2026-08-13 22:00 UTCEPSS rescore
  40. 2026-08-13 11:54 UTCVendor advisory
  41. 2026-08-13 11:54 UTCGHSA enrichment
  42. 2026-08-12 23:50 UTCEG score recompute
  43. 2026-08-12 23:50 UTCVendor advisory
  44. 2026-08-12 23:50 UTCGHSA enrichment
  45. 2026-08-12 13:51 UTCEPSS rescore
  46. 2026-08-12 11:47 UTCVendor advisory
  47. 2026-08-12 11:47 UTCGHSA enrichment
  48. 2026-08-11 23:43 UTCEG score recompute
  49. 2026-08-11 23:43 UTCVendor advisory
  50. 2026-08-11 23:43 UTCGHSA enrichment
  51. 2026-08-11 11:39 UTCEG score recompute
  52. 2026-08-11 11:39 UTCVendor advisory
  53. 2026-08-11 11:39 UTCGHSA enrichment
  54. 2026-08-11 00:00 UTCEPSS rescore
  55. 2026-08-10 23:35 UTCVendor advisory
  56. 2026-08-10 23:35 UTCGHSA enrichment
  57. 2026-08-10 11:31 UTCVendor advisory
  58. 2026-08-10 11:31 UTCGHSA enrichment
  59. 2026-08-09 23:27 UTCEG score recompute
  60. 2026-08-09 23:27 UTCVendor advisory
  61. 2026-08-09 23:27 UTCGHSA enrichment
  62. 2026-08-09 13:46 UTCEPSS rescore
  63. 2026-08-09 11:24 UTCVendor advisory
  64. 2026-08-09 11:24 UTCGHSA enrichment
  65. 2026-08-08 23:20 UTCEG score recompute
  66. 2026-08-08 23:20 UTCVendor advisory
  67. 2026-08-08 23:20 UTCGHSA enrichment
  68. 2026-08-08 16:37 UTCEPSS rescore
  69. 2026-08-08 11:16 UTCVendor advisory
  70. 2026-08-08 11:16 UTCGHSA enrichment
  71. 2026-08-07 23:12 UTCEG score recompute
  72. 2026-08-07 23:12 UTCVendor advisory
  73. 2026-08-07 23:12 UTCGHSA enrichment
  74. 2026-08-07 11:08 UTCVendor advisory
  75. 2026-08-07 11:08 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 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 1% probability of exploitation in the next 30 days, which ranks it in the top 56.1% of all scored CVEs.
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.

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