CVE-2026-34483

low Red Hat
CVSS v3 Base Score
5.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS Score
0.1%
Exploitation probability in 30 days
Top 74% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Published: April 9, 2026 (91 days ago)
Last Modified: April 9, 2026
Vendor: Red Hat
Fix Available: ✓ Yes
Source: REDHAT

Description

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.

CWE

CWE-838

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat JBoss Web Server 5Red Hat JBoss Web Server 6.2.3Red Hat JBoss Web Server 6.2 on RHEL 10Red Hat JBoss Web Server 6.2 on RHEL 8Red Hat JBoss Web Server 6.2 on RHEL 9

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lists.apache.org