CVE-2026-34486
HIGH
CVSS 7.5
org.apache.tomcat:tomcat-catalina
Verified Advisory
EncryptInterceptor bypass in Apache Tomcat (CVE-2026-34486)
An error in the fix for CVE-2026-29146 allowed the EncryptInterceptor to be bypassed in Apache Tomcat, leaving sensitive data unencrypted in transit. This missing encryption of sensitive data poses a risk to deployments relying on the EncryptInterceptor for cluster communication security.
⚠️ Actively exploited in the wild (CISA KEV).
Affected versions:
- Apache Tomcat 11.0.20
- Apache Tomcat 10.1.53
- Apache Tomcat 9.0.116
We recommend updating to: Apache Tomcat 11.0.21, Apache Tomcat 10.1.54, Apache Tomcat 9.0.117.
CVSS 9.8 · our assessment: act_now
Reference: https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly
Details: https://vuln.today/cve/CVE-2026-34486
Verified by vuln.today against published advisories.
Affected versions
- – Apache Tomcat 11.0.20
- – Apache Tomcat 10.1.53
- – Apache Tomcat 9.0.116
Fixed in: Apache Tomcat 11.0.21; Apache Tomcat 10.1.54; Apache Tomcat 9.0.117