CVE-2026-81303
CVE-2026-81303: 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 severityMedium6.3
Medium [CVE-2026-81303] Hawtio-operator: hawtio-operator: routes/custom-host confused-deputy via spec.routehostname
CVE-2026-81303Source published Source updated
A flaw was found in hawtio-operator. A namespace edit user, who normally cannot set custom Route hostnames, can use the operator as a confused deputy to claim arbitrary externally-routable hostnames, enabling subdomain takeover and, in combination with the auto-grant OAuthClient, OAuth redirect hijack. A user with permission to create Hawtio CRs in their namespace can set an arbitrary hostname belonging to another tenant or domain, resulting in a confused-deputy attack. This can lead to subdomain takeover and, when chained with other flaws, potential OAuth token theft via redirect manipulation. Red Hat severity: Moderate — CVSS 6.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N). Weakness: CWE-441. Affected Red Hat products: Red Hat build of Apache Camel - HawtIO 4. Red Hat does not…
- Affected products in this advisory
- Red Hat build of Apache Camel - HawtIO 4
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
- Workarounds
- Administrators can mitigate this issue by restricting which users can create or modify Hawtio custom resources using RBAC policies. Additionally, OpenShift admins can configure the router to use route admission policies that reject Routes claiming hostnames outside of allowed domain patterns. Review existing Hawtio CR instances for unexpected routeHostName values.
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