Score 6.1 from GitHub Security Advisory published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.1; sources differ by 0.0.
A fix is available — apply it.
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected.
Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
June 29, 2026
July 2, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: tomcat9 security update
Red Hat Security Advisory: tomcat security update
Red Hat Security Advisory: tomcat security, bug fix, and enhancement update
Red Hat Security Advisory: tomcat security update
Red Hat Security Advisory: tomcat security update
Red Hat Security Advisory: tomcat security update
Red Hat Security Advisory: tomcat security update
Red Hat Security Advisory: tomcat9 security update
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | tomcat8-user (8.0.32-1ubuntu1.13+esm2) @ xenial | 2026-09-23 | ubuntu |
| redhat | tomcat11-main-11.0.23-0.1.hum1 | 2026-06-29 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.40-1 ... 10.1.60-1 (11 versions) |
| — |
| tomcat11 | 11.0.11-1 ... 11.0.6-1 (10 versions) |
| — |
| tomcat9 | — |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.40-1 ... 10.1.55-1~deb13u1 (10 versions) |
| — |
| tomcat11 | 11.0.11-1 ... 11.0.6-1 (9 versions) |
| — |
| tomcat9 | — |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| tomcat10 | 10.1.10-1 ... 10.1.9-1 (37 versions) |
| — |
| tomcat9 | — |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| tomcat9 | 9.0.43-1 ... 9.0.70-1 (28 versions) |
| — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 225 total refreshes for this CVE.
Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Apache Tomcat - Cross-Site Scripting
Open source ↗Debian:13:tomcat11
redhat:RHSA-2026:32960 · ubuntu:USN-8551-1
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-50229
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.