CVE-2011-4858
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
- EPSS
- 80% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CWE
- CWE-399
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:tomcat
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-wr3m-gw98-mc3j | Maven | org.apache.tomcat:tomcat | >=5.5.0 <5.5.35 | 5.5.35 |
| GHSA-wr3m-gw98-mc3j | Maven | org.apache.tomcat:tomcat | >=6.0.0 <6.0.35 | 6.0.35 |
| GHSA-wr3m-gw98-mc3j | Maven | org.apache.tomcat:tomcat | >=7.0.0 <7.0.23 | 7.0.23 |