CVE-2011-2487 Use of a Broken or Risky Cryptographic Algorithm in Apache WSS4J

What is CVE-2011-2487?

CVE-2011-2487 is a medium-severity vulnerability in Apache Cxf, published on 11 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The implementations of PKCS#1 v1.5 key transport mechanism for XMLEncryption in JBossWS and Apache WSS4J before 1.6.5 is susceptible to a Bleichenbacher attack.

Weakness: CWE-327

Which versions are affected by CVE-2011-2487?

4 open source packages ship an affected version, including org.apache.ws.security:wss4j and wss4j:wss4j. It affects 10 products.

Products include Apache Cxf, Apache Wss4j, Redhat Jboss Business Rules Management System, Redhat Jboss Enterprise Application Platform, Redhat Jboss Enterprise Application Platform Text-Only Advisories, Redhat Jboss Enterprise Soa Platform and 4 more.

How do I fix CVE-2011-2487?

Upgrade org.apache.ws.security:wss4j to 1.6.5 or later.

Is CVE-2011-2487 being exploited?

There is no known exploitation of CVE-2011-2487 in the wild and no public exploit code.

Other vulnerabilities in Apache Cxf

• CVE-2012-2379 XML Signature/Encryption Not Validated in Apache CXF Critical 10.0
• CVE-2026-66909 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage Critical 9.8
• CVE-2026-68079 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay Critical 9.8
• CVE-2026-50628 Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control Critical 9.8
• CVE-2025-48913 Apache CXF: Untrusted JMS configuration can lead to RCE Critical 9.8

All Apache Cxf vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4qqf-hmv6-r6wh.