--- title: "CVE-2026-88809: SUSE Rancher Manager - Open Proxy" description: "SUSE Rancher Manager 2.11.0 to 2.15.3 contains an open proxy vulnerability caused by improper allowlist enforcement in the /meta/proxy endpoint, letting remote attackers forward requests to unauthorized destinations, exploit requires network access to the proxy endpoint." url: https://panop.io/threat-heartbeat/CVE-2026-88809/ --- # CVE-2026-88809 SUSE Rancher Manager - Open Proxy SUSE Rancher Manager 2.11.0 to 2.15.3 contains an open proxy vulnerability caused by improper allowlist enforcement in the /meta/proxy endpoint, letting remote attackers forward requests to unauthorized destinations, exploit requires network access to the proxy endpoint. CVSS base score 7.6 /10 High CISA KEV Not listed Public exploit None known Authentication Required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-88809) ## Details Type Open Proxy CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N Published 2 November 2026 Updated 3 November 2026 Weakness [CWE-918](https://cwe.mitre.org/data/definitions/918.html) ## Vendor fix Update to a version later than 2.15.3 or the latest available version. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-88809](https://nvd.nist.gov/vuln/detail/CVE-2026-88809) - [https://github.com/rancher/rancher/security/advisories/GHSA-f9gf-wh3x-jx3v](https://github.com/rancher/rancher/security/advisories/GHSA-f9gf-wh3x-jx3v) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)