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CVE-2026-88811— Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy

Quick assessment

Affected
SUSE Rancher
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SUSE Rancher Manager 的元代理（meta proxy）中缺少过滤机制，可能导致传入的 Rancher 凭证泄露给云服务商。此漏洞影响 SUSE Rancher 2.15.0 至 2.15.3、2.14.0 至 2.14.7，以及 2.13.0 至 2.13.11 版本。

CVSS 9.1 · Critical EPSS 0.43% · P37

Affected Version Matrix 5

VendorProduct Version RangeStatus
SUSE Rancher 2.15.0< 2.15.3 affected
2.14.0< 2.14.7 affected
2.13.0< 2.13.11 affected
2.12.0< 2.12.15 affected
2.11.0< 2.11.19 affected
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I. Basic Information for CVE-2026-88811

Vulnerability Information
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Vulnerability Title
Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy
Source: CVE Program / CVE List V5
Vulnerability Description
Missing filtering in the SUSE Rancher Manager meta proxy could cause passed in rancher credentials to be leaked to cloud providers. This affects SUSE Rancher 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11,
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过发送数据的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SUSE Rancher 2.15.0 ~ 2.15.3 -

II. Public POCs for CVE-2026-88811

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III. Intelligence Information for CVE-2026-88811

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Other References for CVE-2026-88811 (1)

Same Patch Batch · SUSE · 2026-11-02 · 4 CVEs total

CVE-2026-94290 9.1 CRITICAL Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent m
CVE-2026-88809 7.6 HIGH Rancher meta proxy allowlist bypass leading to server-side request forgery
CVE-2026-88810 7.2 HIGH Privilege escalation in downstream clusters via GlobalRole inheritedNamespacedRules

IV. Related Vulnerabilities

Same product: Rancher
Same vendor: SUSE
Same weakness: CWE-201