High [CVE-2026-45736] Uninitialized memory disclosure via `websocket.close()` with `TypedArray`
This high-severity Red Hat Linux advisory covers CVE-2026-45736 affecting Red Hat Ansible Automation Platform 2.6, Red Hat Developer Hub 1.10, Red Hat Developer Hub 1.9.
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Summary
Uninitialized memory disclosure via `websocket.close()` with `TypedArray`. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-824. Affected package(s): dotnet8, ansible-automation-platform, rhdh/rhdh-hub-rhel9:1782761244, dotnet10, discovery/discovery-ui-rhel9:1782166952, dotnet9.
Resolved in Red Hat advisory RHSA-2026:34374 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat Developer Hub 1.10; Red Hat Developer Hub 1.9; Red Hat Discovery 2; and 30 more.
- dotnet8-0-main-8.0.128-1.hum1
- ansible-automation-platform-26/gateway-rhel9:1782761510
- rhdh/rhdh-hub-rhel9:1782761244
- dotnet10-0-main-10.0.109-1.hum1
- discovery/discovery-ui-rhel9:1782166952
- dotnet9-0-main-9.0.118-1.hum1
- yarnpkg-main-1.22.22-18.1.hum1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:34374
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:34374 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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