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CVE-2026-91923

KubeSphere through 4.1.3 SSRF via git credential verification endpoint

CVSS 4.0 8.3 HIGHCVSS 3.1 7.7 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-91923

Published

KubeSphere through 4.1.3 contains a server-side request forgery vulnerability in the git credential verification endpoint that accepts unvalidated caller-supplied URLs without allowlist restrictions. Authenticated attackers can supply arbitrary URLs to reach internal services and exfiltrate basic-auth credentials from Secrets in any namespace by leveraging the endpoint's error response handling.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91923

Published

kubesphere

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "kubesphere",
                    "product": "kubesphere",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/kubesphere.io/kubesphere",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "4.1.3",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON