MEDIUMMaven →
Apache Tomcat - WebSocket authentication header exposure
Apache Tomcat - WebSocket authentication header exposure
Affected packages
- org.apache.tomcat.embed:tomcat-embed-core— before 9.0.118
- org.apache.tomcat:tomcat— before 9.0.118
- org.apache.tomcat:tomcat-catalina— before 9.0.118
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-42498
- https://github.com/apache/tomcat/commit/169d725788ea6aec217ecac70fe4161c837ba423
- https://github.com/apache/tomcat/commit/6cbe274592ef2d11607b5b188e1df649de52f8d5
- https://github.com/apache/tomcat/commit/b7b173694d588ddcfa432f079baf763cbbbaa5c4
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/n61zwf75jrv09rz90j4jssncm244bwdb
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-9.html
- http://www.openwall.com/lists/oss-security/2026/05/12/14
Structured record: https://osv.dev/vulnerability/GHSA-fv25-8xcx-gqjc
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