Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-59896] Information disclosure due to improper context isolation in server-side rendering

This medium-severity Red Hat Linux advisory covers CVE-2026-59896 affecting Red Hat Ansible Automation Platform 2, Red Hat Developer Hub, Red Hat OpenShift Dev Spaces.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-59896 Source published Jul 8, 2026Source updated Jul 8, 2026

VulniPulse record published Jul 28, 2026Record updated Jul 29, 2026

CVE-2026-59896

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.11.8 before 4.12.27, hono/jsx did not isolate context values per request during server-side rendering, allowing createContext, useContext, jsxRenderer, or useRequestContext data from a different in-flight request to be used after an await in an async component.

This issue is fixed in version 4.12.27. This could lead to information disclosure.

Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N). Weakness: CWE-653.

Affected Red Hat products: Red Hat Ansible Automation Platform 2; Red Hat Developer Hub; Red Hat OpenShift Dev Spaces. Red Hat lists Migration Toolkit for Applications 8; Red Hat Hardened Images as not affected.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected versions

< 4.11.8
< 4.12.27

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Fixed versions

4.12.27

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Mitigation

Upgrade to a fixed release: 4.12.27. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Discussion(0)

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