High Injection

CVE-2026-12542 — Foreman: command injection in foreman-tail

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.

Published Oct 1, 2026 · Updated Oct 16, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: redhat

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.6% (30-day exploitation probability)+7
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.55%

ahead of 45% of scored CVEs · Oct 15, 2026

Affects

Red Hat

Red Hat Satellite 6 and 7 more

CVSS base

7.8

High · 4 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

Documented patch — www.openwall.com (NIST National Vulnerability Database)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Red Hat Red Hat Satellite 6, Red Hat Red Hat Satellite 6.16 for RHEL 8, Red Hat Red Hat Satellite 6.16 for RHEL 9…).
Apply the fixed version or the patch documented under Remediation.
Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Red Hat	Red Hat Satellite 6	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Satellite 6.16 for RHEL 8	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Satellite 6.16 for RHEL 9	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Satellite 6.17 for RHEL 9	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Satellite 6.18 for RHEL 9	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Satellite 6.19 for RHEL 9	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Satellite	≥ 6.16 and < 6.16.4≥ 6.17 and < 6.17.12≥ 6.19 and < 6.19.5≥ 6.18 and < 6.18.10version 6.0	Vulnerable	NIST National Vulnerability Database
Theforeman	Foreman	≥ 1.5.0 and ≤ 3.19.1version 5.0.0	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.8	CVSS 3.1	High	1.8	5.9	nvd@nist.gov via NIST National Vulnerability Database
5.3	CVSS 3.1	Medium	1.8	3.4	secalert@redhat.com via NIST National Vulnerability Database
5.3	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
5.3	CVSS 3.1	Medium	—	—	redhat via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 7.8 (NVD (NIST)) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-78 · OS Command Injection

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 15, 2026 · 3 reading(s) · max 0.55%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Look for parameters with command/query metacharacters and unexpected child processes of the service.

endpoint telemetry (EDR)application logs

Timeline

What happened to this CVE, newest first.

2026
Fix documented
Oct 16, 2026 · NIST National Vulnerability Database
Affected products added · redhat/satellite, theforeman/foreman
Oct 16, 2026 · NIST National Vulnerability Database
CVSS changed · 5.3 → 7.8
Oct 16, 2026 · NIST National Vulnerability Database
Source status changed · Undergoing Analysis → Analyzed
Oct 16, 2026 · NIST National Vulnerability Database
Affected products added · red hat/red hat satellite 6.16 for rhel 8, red hat/red hat satellite 6.16 for rhel 9, red hat/red hat satellite 6.17 for
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 5.3
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Undergoing Analysis
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Oct 1, 2026 · redhat

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 16, 2026 – Oct 16, 2026
1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

9 on the record

bugzilla.redhat.com/show_bug.cgi
issue-tracking, x_refsource_REDHAT, Issue Tracking, Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/security/cve/CVE-2026-12542
vdb-entry, x_refsource_REDHAT, Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/errata/RHSA-2026:74506
vendor-advisory, x_refsource_REDHAT, Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/errata/RHSA-2026:74504
vendor-advisory, x_refsource_REDHAT, Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/errata/RHSA-2026:74503
vendor-advisory, x_refsource_REDHAT, Vendor Advisory, NIST National Vulnerability Database
access.redhat.com/errata/RHSA-2026:74505
vendor-advisory, x_refsource_REDHAT, Vendor Advisory, NIST National Vulnerability Database
www.openwall.com/lists/oss-security/2026/10/07/7
Mailing List, Patch, Third Party Advisory, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2026-12542
GitHub Security Advisories
github.com/advisories/GHSA-79jg-9wx4-f5rr
GitHub Security Advisories

Elsewhere on this site

Red Hat
every CVE for this vendor

Injection
same class

CWE-78
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-107203 Foreman: domain and subnet interface api skips host search filters 4d
Medium CVE-2026-107193 Foreman: api filter lookup ignores a search-limited filter permission 4d
High CVE-2026-89091 Ansible-core: ansible-core: ansible-galaxy collection install symlink path escape allows arbitrary file write / code execution 8d
Medium CVE-2026-107445 Rubygem-katello: katello: katello: katello flatpak remote repositories api cross-organization authorization bypass 8d
Medium CVE-2026-107444 Rubygem-katello: katello: katello: katello docker tags repositories api cross-organization authorization bypass 8d
Medium CVE-2026-107151 Rubygem-smart_proxy_dynflow: task update and done callbacks accept unauthenticated requests 9d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CISA SSVC assessment.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-12542 is "Foreman: command injection in foreman-tail", rated High. It affects Red Hat Satellite 6 (Red Hat); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.8 describes technical severity. EPSS 0.55% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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