UpHeron
All vulnerabilities

Servers and applications

CVE-2021-25320

Cloud credentials can be used through proxy API by users without access

Severity
Critical 9.9
Published
15 Jul 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.4.16, 2.5.9
Also known as
GHSA-gqf8-rvrh-g7w6
Sources
NVD, Project advisories (GitHub)

Description

A Improper Access Control vulnerability in Rancher, allows users in the cluster to make request to cloud providers by creating requests with the cloud-credential ID. Rancher in this case would attach the requested credentials without further checks This issue affects: Rancher versions prior to 2.5.9; Rancher versions prior to 2.4.16.

Affected software

SoftwareAffected versions
RancherServers and applications · cpe:a:rancher:rancher
  • Every version before 2.4.16
  • From 2.5.0 before 2.5.9
RancherServers and applications · github:rancher/rancher
  • From 2.2.0 before 2.4.16
  • From 2.5.0 before 2.5.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-25320
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-25320
  • GitHub Advisory Database https://github.com/advisories/GHSA-gqf8-rvrh-g7w6
  • github.com https://github.com/rancher/rancher/security/advisories/GHSA-gqf8-rvrh-g7w6