PT-2021-16518 · Rancher · Rancher

Jonathan Mercier · Published 2021-07-15 · Updated 2026-03-25 · CVE-2021-25320

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Rancher versions prior to 2.5.9 Rancher versions prior to 2.4.16

Description: An Improper Access Control issue in Rancher allows users in the cluster to make requests to cloud providers by creating requests with the cloud-credential ID, and Rancher attaches the requested credentials without further checks.

Recommendations: For versions prior to 2.5.9, update to version 2.5.9 or later. For versions prior to 2.4.16, update to version 2.4.16 or later.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2021-25320

GHSA-GQF8-RVRH-G7W6

GO-2026-4589

SUSE-SU-2026:1042-1

Affected Products

Rancher

References · 136

• https://osv.dev/vulnerability/GHSA-gqf8-rvrh-g7w6 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4589 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-25320 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-25320 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:1042-1 · Vendor Advisory
• https://github.com/rancher/rancher · Note
• https://github.com/rancher/rancher/security/advisories/GHSA-gqf8-rvrh-g7w6 · Note
• https://suse.com/security/cve/CVE-2026-29064 · Note
• https://suse.com/security/cve/CVE-2026-29771 · Note
• https://suse.com/security/cve/CVE-2026-30851 · Note
• https://suse.com/security/cve/CVE-2026-32245 · Note
• https://suse.com/security/cve/CVE-2026-31801 · Note
• https://suse.com/security/cve/CVE-2026-27946 · Note
• https://suse.com/security/cve/CVE-2026-31959 · Note
• https://suse.com/security/cve/CVE-2026-27965 · Note