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  4. CVE 2026 88811 rancher credentials disclosed to third party
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Back to active CVEs
Critical · CVSS 9.1CVE-2026-88811

Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxyCVE-2026-88811

Answer in brief

CVE-2026-88811 records a Critical severity (CVSS 9.1) vulnerability in Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy. The current sources do not mark it as known exploited. The current feed maps SUSE/Rancher (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 2, 2026Updated Nov 2, 2026Source checked Nov 2, 2026First seen by HOL Nov 2, 2026Material review Nov 2, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps SUSE/Rancher (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
SUSE/Ranchergeneric>=2.15.0 <2.15.3 || >=2.14.0 <2.14.7 || >=2.13.0 <2.13.11 || >=2.12.0 <2.12.15 || >=2.11.0 <2.11.192.15.3, 2.14.7, 2.13.11, 2.12.15, 2.11.19

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for SUSE/Rancher.
  2. 2Review the reported fix. Update SUSE/Rancher to 2.15.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 2, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source 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,

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Rancher meta proxy allowlist bypass leading to server-side request forgerySame suse/rancher package
  • Privilege escalation in downstream clusters via GlobalRole inheritedNamespacedRulesSame suse/rancher package
  • Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent management controllerSame suse/rancher package

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-201
Source
CVE List V5
Source checked
Nov 2, 2026
References
1 linked source
Open source record