CVE-2026-5135

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-07-01. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Foreman. This broken access control vulnerability allows an authenticated user with host-edit permissions to retarget an existing lookup value override to a different host. This is achieved by modifying the match field through nested host attributes, effectively bypassing authorisation checks. The consequence is the potential for unauthorised modification of managed host configurations across different organisational and location boundaries.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
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

2452230 – (CVE-2026-5135) CVE-2026-5135 foreman: Foreman: Unauthorized modification of host configurations via broken access control

https://bugzilla.redhat.com/show_bug.cgi?id=2452230
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-5135
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-2026-5135(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-0:3.14.0.17-1.el9sat2026-07-01redhat
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

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 17× in last 7d / 79× 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. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 13:19 UTCEG score recompute
  4. 2026-07-26 13:19 UTCVendor advisory
  5. 2026-07-26 13:19 UTCGHSA enrichment
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:18 UTCEPSS rescore
  9. 2026-07-24 14:18 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 14:18 UTCEPSS rescore
  12. 2026-07-23 03:19 UTCEG score recompute
  13. 2026-07-22 14:08 UTCEPSS rescore
  14. 2026-07-22 14:08 UTCEPSS rescore
  15. 2026-07-21 15:25 UTCEPSS rescore
  16. 2026-07-21 15:25 UTCEPSS rescore
  17. 2026-07-20 17:08 UTCEPSS rescore
  18. 2026-07-19 14:31 UTCEPSS rescore
  19. 2026-07-19 02:29 UTCEPSS rescore
  20. 2026-07-18 10:04 UTCEPSS rescore
  21. 2026-07-16 23:14 UTCVendor advisory
  22. 2026-07-16 23:14 UTCGHSA enrichment
  23. 2026-07-16 17:03 UTCEPSS rescore
  24. 2026-07-16 00:19 UTCVendor advisory
  25. 2026-07-16 00:19 UTCGHSA enrichment
Show 54 more
  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-15 01:23 UTCVendor advisory
  6. 2026-07-15 01:23 UTCGHSA enrichment
  7. 2026-07-14 02:27 UTCVendor advisory
  8. 2026-07-14 02:27 UTCGHSA enrichment
  9. 2026-07-13 22:31 UTCEPSS rescore
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-13 06:13 UTCEPSS rescore
  12. 2026-07-13 03:32 UTCVendor advisory
  13. 2026-07-13 03:32 UTCGHSA enrichment
  14. 2026-07-12 05:46 UTCEPSS rescore
  15. 2026-07-12 04:36 UTCVendor advisory
  16. 2026-07-12 04:36 UTCGHSA enrichment
  17. 2026-07-11 08:27 UTCEPSS rescore
  18. 2026-07-11 08:27 UTCEPSS rescore
  19. 2026-07-11 05:40 UTCVendor advisory
  20. 2026-07-11 05:40 UTCGHSA enrichment
  21. 2026-07-10 06:44 UTCVendor advisory
  22. 2026-07-10 06:44 UTCGHSA enrichment
  23. 2026-07-09 19:10 UTCEPSS rescore
  24. 2026-07-09 19:10 UTCEPSS rescore
  25. 2026-07-09 07:47 UTCVendor advisory
  26. 2026-07-09 07:47 UTCGHSA enrichment
  27. 2026-07-08 15:16 UTCEPSS rescore
  28. 2026-07-08 15:16 UTCEPSS rescore
  29. 2026-07-08 08:49 UTCVendor advisory
  30. 2026-07-08 08:49 UTCGHSA enrichment
  31. 2026-07-07 13:46 UTCEPSS rescore
  32. 2026-07-07 13:46 UTCEPSS rescore
  33. 2026-07-07 09:54 UTCVendor advisory
  34. 2026-07-07 09:53 UTCGHSA enrichment
  35. 2026-07-06 16:27 UTCEPSS rescore
  36. 2026-07-06 16:27 UTCEPSS rescore
  37. 2026-07-06 10:57 UTCVendor advisory
  38. 2026-07-06 10:57 UTCGHSA enrichment
  39. 2026-07-06 02:23 UTCEPSS rescore
  40. 2026-07-06 02:23 UTCEPSS rescore
  41. 2026-07-05 11:45 UTCVendor advisory
  42. 2026-07-05 11:45 UTCGHSA enrichment
  43. 2026-07-05 02:31 UTCEPSS rescore
  44. 2026-07-05 02:30 UTCEPSS rescore
  45. 2026-07-04 12:49 UTCVendor advisory
  46. 2026-07-04 12:49 UTCGHSA enrichment
  47. 2026-07-04 06:31 UTCEPSS rescore
  48. 2026-07-04 06:31 UTCEPSS rescore
  49. 2026-07-03 13:54 UTCVendor advisory
  50. 2026-07-03 13:54 UTCGHSA enrichment
  51. 2026-07-02 14:57 UTCVendor advisory
  52. 2026-07-02 14:57 UTCGHSA enrichment
  53. 2026-07-01 16:02 UTCEG score recompute
  54. 2026-07-01 16:02 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-5135?
CVE-2026-5135 is a medium vulnerability published on July 1, 2026. A flaw was found in Foreman. This broken access control vulnerability allows an authenticated user with host-edit permissions to retarget an existing lookup value override to a different host. This is achieved by modifying the match field through nested host attributes, effectively bypassing…
When was CVE-2026-5135 disclosed?
CVE-2026-5135 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-2026-5135 actively exploited?
CVE-2026-5135 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 81.7% of all scored CVEs.
What is the CVSS score of CVE-2026-5135?
CVE-2026-5135 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-5135?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5135, 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

Explore the affected products and dependency analysis for CVE-2026-5135

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