CVE-2026-96658: A flaw was found in Foreman

Q: How do I fix CVE-2026-96658?

satellite: upgrade to 6.16.4, 6.17.12, 6.18.10, 6.19.5; foreman: upgrade to 2.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-96658 being exploited?

CVE-2026-96658 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-96658 affect?

CVE-2026-96658 affects satellite, foreman. Severity is high (CVSS 8.8). A flaw was found in Foreman. This vulnerability allows an authenticated remote attacker with low-level read permissions to achieve arbitrary code execution on the underlying server. By manipulating the permitted methods list within the temp

Q: How urgent is CVE-2026-96658?

Priority 49/100. High severity; On your watchlist

This month

HIGH 8.8WATCHLISTUPGRADEUPGRADE

CVE-2026-96658 is a high-severity flaw (CVSS 8.8) affecting satellite, foreman. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in Foreman. This vulnerability allows an authenticated remote attacker with low-level read permissions to achieve arbitrary code execution on the underlying server. By manipulating the permitted methods list within the template rendering engine, an attacker can bypass the safemode sandbox isolation and execute unauthorized commands directly on the host system.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-10-01
Last modified	2026-10-18

Publisher (CNA): Red Hat, Inc. · Vendor: redhat · theforeman

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-01 17:17 UTCPublished CVE record published
2026-10-18 07:16 UTCUpdated Record last modified

redhat satellite UPGRADE

Affected: >= 6.16 and < 6.16.4 · >= 6.17 and < 6.17.12 · >= 6.19 and < 6.19.5 · >= 6.18 and < 6.18.10

Fixed in: 6.16.4, 6.17.12, 6.18.10, 6.19.5

Safe to downgrade to: a release before 6.16

1. Check installed version

apt-cache policy satellite || rpm -q satellite || satellite --version

2. UPGRADE to 6.16.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade satellite

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade satellite

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.16 (Debian / Ubuntu)

apt-cache madison satellite sudo apt install satellite=<VERSION_BEFORE_6.16> sudo apt-mark hold satellite

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list satellite sudo dnf downgrade satellite-<VERSION_BEFORE_6.16> sudo dnf versionlock add satellite

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

theforeman foreman UPGRADE

Affected: < 2.0.1 · 3.19.0 · 3.19.1 · 5.0.0

Fixed in: 2.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy foreman || rpm -q foreman || foreman --version

2. UPGRADE to 2.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade foreman

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade foreman

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-96658?

satellite: upgrade to 6.16.4, 6.17.12, 6.18.10, 6.19.5; foreman: upgrade to 2.0.1. Exact commands for each OS are on this page.

Is CVE-2026-96658 being exploited?

CVE-2026-96658 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-96658 affect?

CVE-2026-96658 affects satellite, foreman. Severity is high (CVSS 8.8). A flaw was found in Foreman. This vulnerability allows an authenticated remote attacker with low-level read permissions to achieve arbitrary code execution on the underlying server. By manipulating the permitted methods list within the temp

How urgent is CVE-2026-96658?

Priority 49/100. High severity; On your watchlist

Related CVEs

CVE-2026-12112 HIGH 7.8 DOWNGRADE MITIGATE A flaw was found in the foreman-mcp-server
CVE-2026-13316 MEDIUM 4.4 UPGRADE MITIGATE A flaw has been found in foreman when HTTP parameters are modified in http_proxies_controller and http_proxy f
CVE-2026-96659 CRITICAL 9.1 UPGRADE UPGRADE A flaw was found in Foreman
CVE-2026-12542 MEDIUM 5.3 UPGRADE UPGRADE A flaw was found in Foreman
CVE-2026-12423 HIGH 7.5 UPGRADE MITIGATE A flaw was found in Foreman

References

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