CVE-2026-5138

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-01. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 9, 2026

Advisory Details (6)

Auto-updated Jul 3, 2026
Patch available. Sources: redhat.
redhat Patch Available

2452971 – (CVE-2026-5138) CVE-2026-5138 foreman: Foreman: Information disclosure via improper validation of nested request parameters

https://bugzilla.redhat.com/show_bug.cgi?id=2452971
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-5138
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34368
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34367
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34366
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34365

Vendor Advisories for CVE-2026-5138(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-0:3.16.0.17-1.el9sat2026-07-01redhat
redhatforeman-0:3.18.0.7-1.el9sat2026-07-01redhat
redhatforeman-0:3.12.0.17-1.el9sat2026-07-01redhat
redhatforeman-0:3.14.0.17-1.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 20× in last 7d / 106× 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 181 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-5138?
CVE-2026-5138 is a medium vulnerability published on July 1, 2026. 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,…
When was CVE-2026-5138 disclosed?
CVE-2026-5138 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-2026-5138 actively exploited?
CVE-2026-5138 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.2% of all scored CVEs.
What is the CVSS score of CVE-2026-5138?
CVE-2026-5138 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-5138?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5138, 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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