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CVE-2026-75035— Rancher: ext.cattle.io/v1 Token store: cross-user token disclosure via label-selector scoping bypass

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是德国SUSE公司开源的一款一套容器管理平台。 SUSE rancher 2.15.1之前版本存在授权问题漏洞，该漏洞源于非管理员调用者提供指定其他用户的标签选择器时，ext.cattle.io/v1 Token存储丢弃内部所有者过滤器，任何经过身份验证的用户均可列出并监视其他用户的令牌，泄露令牌元数据和已存储的持有者令牌加盐哈希。

CVSS 7.7 · High EPSS 0.34% · P28

Affected Version Matrix 1

VendorProduct Version RangeStatus
SUSE Rancher < 2.15.1 affected
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I. Basic Information for CVE-2026-75035

Vulnerability Information
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Vulnerability Title
Rancher: ext.cattle.io/v1 Token store: cross-user token disclosure via label-selector scoping bypass
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Rancher Manager. When a non-administrative caller supplied a label selector naming a different user, the ext.cattle.io/v1 Token store dropped its internal owner filter instead of returning an empty result. Any authenticated user could therefore list and watch every other user's tokens, disclosing token metadata and the stored salted hash of the bearer token. This issue affects Rancher: before 2.15.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
SUSE rancher 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SUSE rancher是德国SUSE公司开源的一款一套容器管理平台。 SUSE rancher 2.15.1之前版本存在授权问题漏洞，该漏洞源于非管理员调用者提供指定其他用户的标签选择器时，ext.cattle.io/v1 Token存储丢弃内部所有者过滤器，任何经过身份验证的用户均可列出并监视其他用户的令牌，泄露令牌元数据和已存储的持有者令牌加盐哈希。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SUSE Rancher 0 ~ 2.15.1 -

II. Public POCs for CVE-2026-75035

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III. Intelligence Information for CVE-2026-75035

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Vendor Pages for CVE-2026-75035 (1)

Same Patch Batch · SUSE · 2026-09-03 · 6 CVEs total

CVE-2026-71404 8.7 HIGH Rancher: Ownership-less ClusterRole overwrite via attacker-controlled cr-name annotation o
CVE-2026-75033 7.7 HIGH Rancher: Cross-Cluster Secret Leakage via Namespace projectId Annotation Spoofing
CVE-2026-75034 7.4 HIGH Rancher: SAML Assertion Replay
CVE-2026-71403 6.1 MEDIUM Rancher: Identity-field mutation in /v3/users allows account hijack via principal rebind
CVE-2026-75036 5.3 MEDIUM Fleet: DNS exfiltration via Sprig getHostByName in fleet.yaml Helm template preprocessing

IV. Related Vulnerabilities

Same product: Rancher
Same vendor: SUSE
Same weakness: CWE-639