CVE-2021-25320: GO-2026-4589 - Rancher cloud credentials can be used through proxy API by users without access in github.com/rancher/rancher

CVE-2021-25320 · Severity: low · CVSS 3.1 · Published 2026-03-10

Rancher cloud credentials can be used through proxy API by users without access in github.com/rancher/rancher

Technologies: github.com/rancher/rancher (Go). Vendors: Go.

Quick answers

Is CVE-2021-25320 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-25320 being exploited in the wild.
How severe is CVE-2021-25320?
Low severity, with a CVSS score of 3.1, published 10 March 2026.
Which products and versions are affected?
github.com/rancher/rancher (Go) SEMVER:introduced=2.2.0,fixed=2.4.16, SEMVER:introduced=2.2.0+incompatible.
Is there a fix for CVE-2021-25320?
Yes. github.com/rancher/rancher (Go): upgrade to 2.4.16 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-25320?
Check whether you run github.com/rancher/rancher (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/rancher/rancher (Go): upgrade to 2.4.16 or later
    go get github.com/rancher/rancher@v2.4.16

Affected products

  • github.com/rancher/rancher (Go) SEMVER:introduced=2.2.0,fixed=2.4.16, SEMVER:introduced=2.2.0+incompatible

Identifiers

  • CVE-2021-25320
  • GHSA-gqf8-rvrh-g7w6
  • GO-2026-4589

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