How severe is CVE-2012-1154?

No CVSS score has been assigned to CVE-2012-1154 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2012-1154?

CVE-2012-1154 affects the following packages: org.jboss.mod_cluster:mod_cluster (Maven). Ecosystems affected: Maven.

How do I fix CVE-2012-1154?

Update org.jboss.mod_cluster:mod_cluster to 1.1.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-1154 is resolved across your whole dependency graph.

How do I detect CVE-2012-1154 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jboss.mod_cluster:mod_cluster, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2012-1154 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2012-1154 actively exploited in the wild?

No public exploit code has been indexed for CVE-2012-1154 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2012-1154?

CVE-2012-1154 has an EPSS (Exploit Prediction Scoring System) score of 2.6%, placing it in the 85th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2012-1154?

CVE-2012-1154 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2012-1154 published, and has it been updated?

CVE-2012-1154 was published on May 17, 2022 and was last updated on November 28, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2012-1154 — mod_cluster

CVE-2012-1154 is a CWE-264 vulnerability in org.jboss.mod_cluster:mod_cluster. A fix is available for org.jboss.mod_cluster:mod_cluster — see the affected versions and patch details below.

Improper Access Control in JBoss mod_cluster

Published

May 17, 2022

Updated

Nov 28, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs85th percentile — riskier than 85% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

☕org.jboss.mod_cluster:mod_cluster

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

mod_cluster 1.0.10 before 1.0.10 CP03 and 1.1.x before 1.1.4, as used in JBoss Enterprise Application Platform 5.1.2, when "ROOT" is set to excludedContexts, exposes the root context of the server, which allows remote attackers to bypass access restrictions and gain access to applications deployed on the root context via unspecified vectors.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jboss.mod_cluster:mod_cluster`	≥ 1.1.0&&< 1.1.4	1.1.4`org.jboss.mod_cluster:mod_cluster:1.1.4`

Affected Products

2 products · 7 configurations

Application

jboss enterprise application platformredhat

1 version

5.1.2

Application

mod clusterredhat

6 versions

1.0.101.1.01.1.11.1.21.1.31.1.4

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jboss.mod_cluster:mod_cluster, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jboss.mod_cluster:mod_cluster to 1.1.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-1154 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
JBEWP 5 for RHEL 5	`mod_cluster-0:1.0.10-4.1.GA_CP02_patch01.ep5.el5`	RHSA-2012:1053
Red Hat JBoss Enterprise Application Platform 5.1	see advisory	RHSA-2012:1010
Red Hat JBoss Enterprise Application Platform 5 for RHEL 4	`mod_cluster-0:1.0.10-4.GA_CP02_patch01.ep5.el4`	RHSA-2012:1052
Red Hat JBoss Enterprise Web Server 1 for RHEL 5	`mod_cluster-0:1.0.10-4.1.GA_CP02_patch01.ep5.el5`	RHSA-2012:1166
Red Hat JBoss Web Platform 5.1	see advisory	RHSA-2012:1011
Red Hat JBoss Web Server 1.0	see advisory	RHSA-2012:1012

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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