major vulnerability· requires attention

Impacts SUSE Rancher, a widely used Kubernetes management platform; credential leaks can enable cloud account takeover and cluster compromise.

Cloud

CVE-2026-88811

9.1

Critical

EPSS n/aPatch available

Rancher meta-proxy can leak Rancher credentials to cloud providers.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

No EPSS score yet

Published 2 Nov 2026Analysed here 3 Nov 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-88811 being exploited?

Not confirmed. CVE-2026-88811 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2026-88811?

CVE-2026-88811 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-88811?

Yes. A fix has been recorded for CVE-2026-88811. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-88811 affect?

CVE-2026-88811 affects SUSE Rancher Manager meta-proxy, Rancher 2.15.0 - 2.15.3, Rancher 2.14.0 - 2.14.7, Rancher 2.13.0 - 2.13.11. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-88811?

Prepare to apply vendor patch, rotate affected credentials, restrict proxy access and audit cloud accounts.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

SUSE Rancher Manager meta-proxyRancher 2.15.0 - 2.15.3Rancher 2.14.0 - 2.14.7Rancher 2.13.0 - 2.13.11

impact

Disclosure of Rancher credentials to cloud providers, enabling account takeover, cluster access, and data exfiltration.

action required

Immediate action required

affected versions

SUSE Rancher

affected>= 2.15.0 and < 2.15.3
affected>= 2.14.0 and < 2.14.7
affected>= 2.13.0 and < 2.13.11
affected>= 2.12.0 and < 2.12.15
affected>= 2.11.0 and < 2.11.19

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

cisa ssvc

exploitation: none
automatable: yes
technical impact: total

Assessed by CISA 2 Nov 2026 (SSVC 2.0.3).

timeline

2 Nov 2026CISA SSVC assessment: exploitation none
2 Nov 2026Published · 1 day later
3 Nov 2026CVE record last updated · 1 day later
3 Nov 2026Analysed by vulneraibility.com · same day later

also known as

GHSA-x82x-2qj6-5rm2

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

1 reference in the CVE record: 1 advisory

Advisorygithub.com /rancher/rancher/security/advisories/GHSA-x82x-2qj6-5rm2

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
CISA Vulnrichment (ADP): SSVC decision points
FIRST EPSS: exploit probability and percentile
OSV: advisory aliases and downstream package versions
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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