Status: UPDATED | Advisory ID: CVE-2026-34483
| CVE | CVE-2026-34483 |
| CVSS | CVSS 7.5 (High). |
| Affected products | Apache Tomcat |
| Classified as | CWE-116 (Improper Encoding or Escaping of Output) |
Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-34483 |
| Vendor advisory | https://lists.apache.org/thread/j1w7304yonlr8vo1tkb5nfs7od1y228b |