CVE-2026-12405

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-10-01. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released 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: 1.5%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in rubygem-foreman_remote_execution. A command injection vulnerability exists in the Red Hat Satellite API (/api/v2/job_invocations). When a job template has the effective_user property marked as overridable: true, the application fails to properly sanitize the effective_user input provided during the API request. The exploitation does not rely on the content or logic of the Job Template/playbook itself; rather, the injection occurs during the instantiation of the job execution environment by the Satellite server. An attacker with permissions to execute job templates can inject arbitrary shell commands into this parameter, which are executed on the target infrastructure with the privileges of the execution user.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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%
Exploitation2% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.5%
EPSS %ILE
73rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 1, 2026

Last Modified

October 2, 2026

Advisory Details (3)

Auto-updated Oct 1, 2026
Patch available. Sources: redhat.
redhat

2488952 – (CVE-2026-12405) CVE-2026-12405 rubygem-foreman_remote_execution: command injection in job invocations via effective_user parameter

https://bugzilla.redhat.com/show_bug.cgi?id=2488952
redhat Patch Available

CVE-2026-12405 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-12405
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:74503

Vendor Advisories for CVE-2026-12405(5)

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
redhatrubygem-foreman_remote_execution-0:16.2.3-2.el9sat2026-10-01redhat
redhatrubygem-foreman_remote_execution-0:16.5.3-2.el9sat2026-10-01redhat
redhatrubygem-foreman_remote_execution-0:13.2.8-2.el9sat2026-10-01redhat
redhatrubygem-foreman_remote_execution-0:15.0.2-2.el9sat2026-10-01redhat

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.

Data Freshness Timeline

(refreshed 28× in last 7d / 28× 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. 2026-10-04 04:19 UTCVendor advisory
  2. 2026-10-04 04:19 UTCGHSA enrichment
  3. 2026-10-03 16:42 UTCEG score recompute
  4. 2026-10-03 16:42 UTCVendor advisory
  5. 2026-10-03 16:42 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-03 05:06 UTCVendor advisory
  8. 2026-10-03 05:06 UTCGHSA enrichment
  9. 2026-10-02 17:30 UTCEG score recompute
  10. 2026-10-02 17:30 UTCVendor advisory
  11. 2026-10-02 17:29 UTCGHSA enrichment
  12. 2026-10-02 17:01 UTCEG score recompute
  13. 2026-10-02 17:01 UTCVendor advisory
  14. 2026-10-02 17:00 UTCGHSA enrichment
  15. 2026-10-02 12:05 UTCVendor advisory
  16. 2026-10-02 12:04 UTCGHSA enrichment
  17. 2026-10-02 00:25 UTCEG score recompute
  18. 2026-10-02 00:25 UTCVendor advisory
  19. 2026-10-02 00:25 UTCGHSA enrichment
  20. 2026-10-01 23:37 UTCEG score recompute
  21. 2026-10-01 23:37 UTCGHSA enrichment
  22. 2026-10-01 20:41 UTCGHSA enrichment
  23. 2026-10-01 19:22 UTCEG score recompute
  24. 2026-10-01 19:22 UTCGHSA enrichment
  25. 2026-10-01 18:23 UTCEG score recompute
Show 3 more
  1. 2026-10-01 17:27 UTCEG score recompute
  2. 2026-10-01 16:27 UTCEG score recompute
  3. 2026-10-01 16:25 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-12405?
CVE-2026-12405 is a high vulnerability published on October 1, 2026. A flaw was found in rubygem-foremanremoteexecution. A command injection vulnerability exists in the Red Hat Satellite API (/api/v2/jobinvocations). When a job template has the effectiveuser property marked as overridable: true, the application fails to properly sanitize the effective_user input…
When was CVE-2026-12405 disclosed?
CVE-2026-12405 was first published on October 1, 2026, with the most recent update on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12405 actively exploited?
CVE-2026-12405 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.5% probability of exploitation in the next 30 days (73rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12405?
CVE-2026-12405 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-2026-12405?
A fix for CVE-2026-12405 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-12405 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-12405

Explore →

Is Your Infrastructure Affected by CVE-2026-12405?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs