CVE.org (no NVD analysis yet)· CNA suse

CVE-2026-88810: Privilege escalation in downstream clusters via GlobalRole inheritedNamespacedRules

Noroxi assessment

Priority: Monitor (action score 28/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.47% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: SUSE Rancher 0.11.4, 0.12.1, 2.15.3.

Low priority for now. Upgrade to SUSE Rancher 0.11.4, 0.12.1, 2.15.3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A privilege escalation issue was discovered in Rancher Manager's role-based access control. The inheritedNamespacedRules field of a GlobalRole propagates permissions into named namespaces of every downstream cluster managed by the Rancher instance, but it was not subject to the privilege-escalation validation applied to the other permission-carrying fields of a GlobalRole. As a result, a non-administrative user could be granted, through a global role binding, permissions in downstream clusters that exceed the permissions that user already holds. This affected SUSE Rancher 2.15.2 only, and SUSE Rancher Webhook 0.11.0 up to 0.11.4, and 0.12.0 up to 0.12.1.

HighCVSS 7.2 · v3.1—No exploit Fix available

Auth bypass

EUVD-2026-115328

Published: Nov 2, 2026
Updated: Nov 3, 2026
EPSS: 0.4% · 41th percentile
CWE: CWE-306

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · suse: 7.2; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (suse). Independent of NVD's CPE analysis and usually ahead of it.

SUSE Rancher
- 2.15.2 and later · before 2.15.3affected · semver
- 0.11.0 and later · before 0.11.4affected · semver
- 0.12.0 and later · before 0.12.1affected · semver

Same product

suse: all records

Other highest-scoring records for the same primary product.

CVE-2023-22649Rancher 'Audit Log' leaks sensitive information
40Plan
CVE-2022-43755Rancher: Non-random authentication token
40Plan
CVE-2021-36782Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
40Plan

Published before and after this one in the same product

← EarlierCVE-2026-88809Nov 2, 2026 · Rancher meta proxy allowlist bypass leading to server-side request forgery
30Monitor
← EarlierCVE-2026-94290Nov 2, 2026 · Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent management controller
36Monitor
Later →CVE-2026-88811Nov 2, 2026 · Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy
36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
SUSE Rancher	0.11.4	Vendor (CNA)
SUSE Rancher	0.12.1	Vendor (CNA)
SUSE Rancher	2.15.3	Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedNov 2, 2026
Fix recordedNov 2, 2026same day
TodayNov 11, 2026+9 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Eurico Nicaciofinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-44949125 days apartUnauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook
28Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2026-25705173 days apartRancher Extensions have arbitrary file access via path traversal
33Monitor
CVE-2026-888090 days apartRancher meta proxy allowlist bypass leading to server-side request forgery
30Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1// Added for the support team
2app.post("/maintenance/reset", resetDevice);

Fixed

1if (config.maintenanceEnabled) {
2  app.post(
3    "/maintenance/reset",
4    requireSession, requireRole("admin"), resetDevice
5  );
6}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

SSVC exploitation— → noneNov 2, 2026, 8:07 PM UTC
Exploit maturity— → noneNov 2, 2026, 6:07 PM UTC
Fix✗ → ✓Nov 2, 2026, 6:07 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/rancher/webhook/security/advisories/GHSA-f898-2c8h-r7jc

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records