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HIGH

CVE-2026-75035

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

CVSS v3

7.7

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-09-03
Last Modified
2026-09-03

Frequently asked questions

What is CVE-2026-75035?

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.

Is CVE-2026-75035 actively exploited?

Active exploitation of CVE-2026-75035 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-75035?

CVE-2026-75035 has a CVSS v3 base score of 7.7 (HIGH severity).

Is CVE-2026-75035 affecting your environment?

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