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CVE-2011-4314 openid4java

CVE-2011-4314 is a Improper Input Validation vulnerability in org.openid4java:openid4java. A fix is available for org.openid4java:openid4java — see the affected versions and patch details below.

OpenID4Java does not verify that Attribute Exchange (AX) information is signed

Also known asGHSA-j473-c3rr-rx9p
Published
Jan 27, 2012
Updated
Apr 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
3.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs87th percentile — riskier than 87% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
org.openid4java:openid4java

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

message/ax/AxMessage.java in OpenID4Java before 0.9.6 final, as used in JBoss Enterprise Application Platform 5.1 before 5.1.2, Step2, Kay Framework before 1.0.2, and possibly other products does not verify that Attribute Exchange (AX) information is signed, which allows remote attackers to modify potentially sensitive AX information without detection via a man-in-the-middle (MITM) attack.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.openid4java:openid4javaall versions0.9.6org.openid4java:openid4java:0.9.6

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.openid4java:openid4java, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.openid4java:openid4java to 0.9.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-4314 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2011-4314 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2011-4314. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

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 HatLow
ProductFixed inAdvisory
JBEWP 5 for RHEL 5apache-cxf-0:2.2.12-4.patch_02.1.1.ep5.el5RHSA-2011:1803
JBEWP 5 for RHEL 6apache-cxf-0:2.2.12-4.patch_02.1.ep5.el6RHSA-2011:1802
JBoss Enterprise BRMS Platform 5.2see advisoryRHSA-2012:0441
Red Hat JBoss Enterprise Application Platform 5.1see advisoryRHSA-2011:1805
Red Hat JBoss Enterprise Application Platform 5 for RHEL 5apache-cxf-0:2.2.12-4.patch_02.1.1.ep5.el5RHSA-2011:1799
Red Hat JBoss Enterprise Application Platform 5 for RHEL 6apache-cxf-0:2.2.12-4.patch_02.1.ep5.el6RHSA-2011:1798
Red Hat JBoss Portal 5.2see advisoryRHSA-2012:0519
Red Hat JBoss SOA Platform 5.2see advisoryRHSA-2012:0378

Frequently Asked Questions

message/ax/AxMessage.java in OpenID4Java before 0.9.6 final, as used in JBoss Enterprise Application Platform 5.1 before 5.1.2, Step2, Kay Framework before 1.0.2, and possibly other products does not verify that Attribute Exchange (AX) information is signed, which allows remote attackers to modify potentially sensitive AX information without detection via a man-in-the-middle (MITM) attack.
O3 Security · Impact-Aware SCA

Is CVE-2011-4314 in your dependencies?

O3 Security finds CVE-2011-4314 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2011-4314: openid4java | O3 Security