CVE-2026-34483
CVE-2026-34483: 2 tracked advisory records across Apache, Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityHigh7.5
High [CVE-2026-34483] Apache Tomcat: Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.
CVE-2026-34483Source published Source updated
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.
- Affected products in this advisory
- Apache Tomcat
- Tomcat
- Source-reported affected versions
- 11.0.0-M1 through 11.0.20
- 10.1.0-M1 through 10.1.53
- 9.0.40 through 9.0.116.
- through 9.0.116
- Source-reported fixed versions
- 11.0.21
- 10.1.54
- 9.0.117
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
Red Hat
1 advisory- Advisory severityMedium5.4
Medium [CVE-2026-34483] Information disclosure due to improper encoding in JsonAccessLogValve
CVE-2026-34483Source published
Information disclosure due to improper encoding in JsonAccessLogValve. Red Hat rates this low (CVSS 5.4). Weakness: CWE-838. Affected package(s): tomcat, jws6-tomcat. Resolved in Red Hat advisory RHSA-2026:20405 — update the affected packages (`sudo dnf update`).
- Related products — impact not confirmed
- Red Hat Enterprise Linux 1
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- jws6-tomcat
- Source-reported affected versions
- tomcat
- jws6-tomcat-0:10.1.49-13.redhat_00011.1.el10jws
- jws6-tomcat-0:10.1.49-13.redhat_00011.1.el8jws
- jws6-tomcat-0:10.1.49-13.redhat_00011.1.el9jws
- Source-reported fixed versions
- RHSA-2026:20405
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:20405 (`sudo dnf update` / `yum update`).
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