CVE-2026-12542

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-10-01. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Foreman. The foreman-tail utility is vulnerable to OS command injection due to the unsafe use of the eval command. The script takes user-supplied arguments and incorporates them directly into a string that is then executed by eval to expand file paths. Because the input is not sanitized or quoted, a local attacker can inject shell metacharacters (e.g., ;, &, |) to execute arbitrary system commands.

CVSS v3
5.3
EG Score
5.3MEDIUMhigh confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity53% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

2489971 – (CVE-2026-12542) CVE-2026-12542 foreman: command injection in foreman-tail

https://bugzilla.redhat.com/show_bug.cgi?id=2489971
redhat Patch Available

CVE-2026-12542 - 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-2026-12542
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:74503

Vendor Advisories for CVE-2026-12542(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
redhatforeman-0:3.18.0.14-1.el9sat2026-10-01redhat
redhatforeman-0:3.12.0.23-1.el9sat2026-10-01redhat
redhatforeman-0:3.16.0.25-1.el9sat2026-10-01redhat
redhatforeman-0:3.14.0.22-1.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 24× in last 7d / 24× 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. 2026-10-03 16:57 UTCEG score recompute
  2. 2026-10-03 16:57 UTCVendor advisory
  3. 2026-10-03 16:57 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-02 18:20 UTCVendor advisory
  6. 2026-10-02 18:20 UTCGHSA enrichment
  7. 2026-10-02 18:20 UTCVendor advisory
  8. 2026-10-02 18:20 UTCEG score recompute
  9. 2026-10-02 18:20 UTCVendor advisory
  10. 2026-10-02 18:20 UTCGHSA enrichment
  11. 2026-10-02 18:20 UTCGHSA enrichment
  12. 2026-10-02 17:47 UTCEG score recompute
  13. 2026-10-02 17:47 UTCVendor advisory
  14. 2026-10-02 17:47 UTCGHSA enrichment
  15. 2026-10-02 00:25 UTCEG score recompute
  16. 2026-10-02 00:25 UTCVendor advisory
  17. 2026-10-02 00:25 UTCGHSA enrichment
  18. 2026-10-01 23:53 UTCEG score recompute
  19. 2026-10-01 23:53 UTCGHSA enrichment
  20. 2026-10-01 20:41 UTCEG score recompute
  21. 2026-10-01 20:40 UTCGHSA enrichment
  22. 2026-10-01 18:30 UTCEG score recompute
  23. 2026-10-01 17:21 UTCEG score recompute
  24. 2026-10-01 17:20 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-12542?
CVE-2026-12542 is a medium vulnerability published on October 1, 2026. A flaw was found in Foreman. The foreman-tail utility is vulnerable to OS command injection due to the unsafe use of the eval command. The script takes user-supplied arguments and incorporates them directly into a string that is then executed by eval to expand file paths. Because the input is not…
When was CVE-2026-12542 disclosed?
CVE-2026-12542 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-2026-12542 actively exploited?
CVE-2026-12542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12542?
CVE-2026-12542 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12542?
A fix for CVE-2026-12542 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-12542 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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