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 — Patch released this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 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)
EPSS
17.6%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 2, 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 25× in last 7d / 25× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 10:57 UTCEG score recompute
  4. 2026-07-06 10:57 UTCVendor advisory
  5. 2026-07-06 10:57 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 11:45 UTCEG score recompute
  9. 2026-07-05 11:45 UTCVendor advisory
  10. 2026-07-05 11:45 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 12:49 UTCEG score recompute
  14. 2026-07-04 12:49 UTCVendor advisory
  15. 2026-07-04 12:49 UTCGHSA enrichment
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-03 13:54 UTCEG score recompute
  19. 2026-07-03 13:54 UTCVendor advisory
  20. 2026-07-03 13:54 UTCGHSA enrichment
  21. 2026-07-02 14:57 UTCEG score recompute
  22. 2026-07-02 14:57 UTCVendor advisory
  23. 2026-07-02 14:57 UTCGHSA enrichment
  24. 2026-07-01 16:02 UTCEG score recompute
  25. 2026-07-01 16:02 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

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 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5135 actively exploited?
CVE-2026-5135 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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