CVE-2026-59895
CVE-2026-59895: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
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
Red Hat
1 advisory- Advisory severityMedium6.1
Medium [CVE-2026-59895] Arbitrary markup injection via improper handling of class names in server-side rendering.
CVE-2026-59895Source published Source updated
Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before 4.12.27, cx() in hono/css composes class names from plain strings but marks the result as already escaped without HTML-escaping the input, allowing untrusted className values used in a JSX class attribute during server-side rendering to break out of the attribute and inject arbitrary markup. This issue is fixed in version 4.12.27. This could result in Cross-Site Scripting (XSS) attacks, where malicious scripts can be executed in a user's browser. Red Hat severity: Moderate — CVSS 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). Weakness: CWE-79. Affected Red Hat products: Migration Toolkit for Applications 8; Red Hat Ansible Automation Platform 2; Red Hat Developer Hub; Red Hat…
- Affected products in this advisory
- Migration Toolkit for Applications 8
- Red Hat Ansible Automation Platform 2
- Red Hat Developer Hub
- Red Hat OpenShift Dev Spaces
- Source-reported affected versions
- < 4.0.0
- < 4.12.27
- Source-reported fixed versions
- 4.12.27
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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