How severe is CVE-2026-71404?

CVE-2026-71404 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-71404 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-71404?

CVE-2026-71404 affects Suse Rancher. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-71404?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-71404 published?

CVE-2026-71404 was published on 2026-09-03 and last updated on 2026-09-18.

CVE-2026-71404

CVE-2026-71404 is a high-severity vulnerability in Suse Rancher with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Suse Rancher
Published: 2026-09-03
Last modified: 2026-09-18

Description

A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted. This issue affects Rancher: before 2.15.1.

Frequently asked questions

What is CVE-2026-71404?: A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted. This issue affects Rancher: before 2.15.1.
How severe is CVE-2026-71404?: CVE-2026-71404 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-71404 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-71404?: CVE-2026-71404 affects Suse Rancher. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-71404?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-71404 published?: CVE-2026-71404 was published on 2026-09-03 and last updated on 2026-09-18.

References

Affected products (1)

cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:*

More vulnerabilities in Suse Rancher

CVE-2023-22647 — Critical (CVSS 9.9): An Improper Privilege Management vulnerability in SUSE Rancher allowed standard users to leverage their existing…
CVE-2023-22651 — Critical (CVSS 9.9): Improper Privilege Management vulnerability in SUSE Rancher allows Privilege Escalation. A failure in the update logic…
CVE-2022-43757 — Critical (CVSS 9.9): A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows users on managed clusters to gain…
CVE-2021-36783 — Critical (CVSS 9.9): A Insufficiently Protected Credentials vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster…
CVE-2021-36782 — Critical (CVSS 9.9): A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster…
CVE-2019-11202 — Critical (CVSS 9.8): An issue was discovered that affects the following versions of Rancher: v2.0.0 through v2.0.13, v2.1.0 through v2.1.8,…

All CVEs affecting Suse Rancher →

Other CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities

CVE-2026-69865 — Critical (CVSS 10.0): Authorization bypass through user-controlled key in Microsoft Container Registry allows an unauthorized attacker to…
CVE-2026-83711 — Critical (CVSS 10.0): Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized…
CVE-2026-77998 — Critical (CVSS 10.0): Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML…
CVE-2026-77995 — Critical (CVSS 10.0): Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0, OAuth Single Sign-On…
CVE-2025-40805 — Critical (CVSS 10.0): Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an…
CVE-2024-45032 — Critical (CVSS 10.0): A vulnerability has been identified in Industrial Edge Management Pro (All versions < V1.9.5), Industrial Edge…

Browse all CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities →