CVE-2026-80219
HIGHDescription
A flaw was found in hawtio-operator. When deploying Hawtio in cluster mode, the operator creates a cluster-scoped OAuthClient with automatic grant approval (GrantMethod: auto) and no client secret (public client). The redirect URIs are derived from the operator-created Route, whose hostname is tenant-controlled via the Hawtio CR spec.routeHostName field. A malicious tenant can register an arbitrary hostname as a valid OAuth redirect target and, because grants are auto-approved, obtain OpenShift access tokens of any cluster user who visits the crafted authorization URL without any consent prompt.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 14% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1390 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-40554 | Critical | 9.8 | 59% | - | Fix |
| CVE-2026-55040 | Critical | 9.1 | 51% | KEV | Fix |
| CVE-2025-40552 | Critical | 9.8 | 50% | - | Fix |
| CVE-2025-27740 | High | 8.8 | 3.4% | - | Fix |
| CVE-2024-49019 | High | 7.8 | 2.0% | - | Fix |
| CVE-2024-38239 | High | 7.2 | 1.7% | - | Fix |
Common questions
How do I fix CVE-2026-80219?
No published fix for CVE-2026-80219 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-80219 being actively exploited?
Not that we know of. CVE-2026-80219 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.23% is the estimated probability that it will be exploited in the next 30 days. That is higher than 14% of all scored CVEs.
How severe is CVE-2026-80219?
CVE-2026-80219 has a CVSS v3 base score of 8.7, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-17.