Answer in brief
CVE-2019-17563 records a High severity (CVSS 7.5) vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Tomcat (generic), org.apache.tomcat.embed:tomcat-embed-core (maven), org.apache.tomcat.embed:tomcat-embed-core (maven), org.apache.tomcat.embed:tomcat-embed-core (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Apache Software Foundation/Apache Tomcat (generic), org.apache.tomcat.embed:tomcat-embed-core (maven), org.apache.tomcat.embed:tomcat-embed-core (maven), org.apache.tomcat.embed:tomcat-embed-core (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apache Software Foundation/Apache Tomcatgeneric | 9.0.0.M1 to 9.0.29 || 8.5.0 to 8.5.49 || 7.0.0 to 7.0.98 | Not reported |
| org.apache.tomcat.embed:tomcat-embed-coremaven | >=0 <7.0.99 | 7.0.99 |
| org.apache.tomcat.embed:tomcat-embed-coremaven | >=8.0.0 <8.5.50 | 8.5.50 |
| org.apache.tomcat.embed:tomcat-embed-coremaven | >=9.0.0 <9.0.30 | 9.0.30 |
Published upstream
Dec 23, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.
Quoted source text, attributed separately from HOL analysis.