Medium [CVE-2026-53669] Open Redirect vulnerability via backslashes in navigation components
This medium-severity Red Hat Linux advisory covers CVE-2026-53669 affecting Red Hat Hardened Images, Cryostat 4, Exploit Intelligence.
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Summary
React Router is a router for React. Versions 6.0.0 through 7.17.0 are vulnerable to Open Redirtect through use of backslashes in and useNavigate.
This issue is a follow up to CVE-2025-68470 and has been fixed in version 7.18.0. A remote attacker could exploit this vulnerability by crafting a malicious link that uses backslashes within the or useNavigate components.
This could lead to an Open Redirect, allowing the attacker to redirect users to arbitrary external websites, potentially for phishing or other malicious purposes. This could facilitate phishing attacks against users.
Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N). Weakness: CWE-601.
Affected products named by the advisory: Red Hat Hardened Images; Cryostat 4; Exploit Intelligence; Gatekeeper 3; and 41 more.
Affected products named by the advisory: Migration Toolkit for Virtualization; Multicluster Engine for Kubernetes; Network Observability Operator; Node HealthCheck Operator; and 37 more.
- 6.0.0
- 7.17.0
Official advisory · high-confidence parse· fetched 28 days ago·verify at source
- 7.18.0
- prometheus3-13-main-3.13.1-0.5.hum1
- prometheus3-5-main-3.5.5-0.6.hum1
- RHSA-2026:48780
- RHSA-2026:48799
Official advisory · high-confidence parse· fetched 28 days ago·verify at source
Mitigation
Upgrade to a fixed release: 7.18.0, prometheus3-13-main-3.13.1-0.5.hum1, prometheus3-5-main-3.5.5-0.6.hum1, RHSA-2026:48780, RHSA-2026:48799. That is the remediation for this advisory.
The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.
Official advisory · high-confidence parse· fetched 28 days ago·verify at source
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