How severe is CVE-2011-1411?

No CVSS score has been assigned to CVE-2011-1411 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2011-1411?

CVE-2011-1411 affects the following packages: org.opensaml:opensaml (Maven), org.opensaml:opensaml (Maven). Ecosystems affected: Maven.

How do I fix CVE-2011-1411?

Update org.opensaml:opensaml to 2.4.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-1411 is resolved across your whole dependency graph.

How do I detect CVE-2011-1411 in my Maven dependencies?

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

How do I mitigate CVE-2011-1411 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2011-1411 actively exploited in the wild?

No public exploit code has been indexed for CVE-2011-1411 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-2011-1411?

CVE-2011-1411 has an EPSS (Exploit Prediction Scoring System) score of 2.3%, placing it in the 83th 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-2011-1411?

CVE-2011-1411 is classified as Improper Authentication (CWE-287). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2011-1411 published, and has it been updated?

CVE-2011-1411 was published on May 17, 2022 and was last updated on December 7, 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-2011-1411 — opensaml

CVE-2011-1411 is a Improper Authentication vulnerability in org.opensaml:opensaml. A fix is available for org.opensaml:opensaml — see the affected versions and patch details below.

Improper Authentication in OpenSAML

Published

May 17, 2022

Updated

Dec 7, 2024

Affected

2 pkgs

Patched

2 / 2

Exploits

None indexed

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

EPSS Exploitation Probability

via FIRST.org ↗

2.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs83th percentile — riskier than 83% of all scored CVEsHighest risk

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

Real-World Exposure

2 pkgs affected

☕org.opensaml:opensaml☕org.opensaml:opensaml

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

Shibboleth OpenSAML library 2.4.x before 2.4.3 and 2.5.x before 2.5.1, and IdP before 2.3.2, allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.opensaml:opensaml`	≥ 2.4.0&&< 2.4.3	2.4.3`org.opensaml:opensaml:2.4.3`
☕Maven	`org.opensaml:opensaml`	≥ 2.5.0&&< 2.5.1	2.5.1`org.opensaml:opensaml:2.5.1`

Affected Products

2 products · 15 configurations

Application

opensamlshibboleth

4 versions

2.4.02.4.12.4.22.5.0

Application

shibboleth-identity-providershibboleth

≤ 2.3.1

10 versions

2.0.02.1.02.1.12.1.22.1.32.1.42.1.52.2.02.2.12.3.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.opensaml:opensaml, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.opensaml:opensaml to 2.4.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-1411 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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