Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-47839

Federated OIDC Users Can Bypass externalGroupsWhitelist to Gain uaa.admin

CVSS 4.0 9.2 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-47839

Published

A vulnerability allows users authenticating through a federated OIDC provider to obtain the uaa.admin scope despite operators restricting that provider through externalGroupsWhitelist configuration. The issue occurs specifically when an OIDC identity provider uses groupMappingMode: AS_SCOPES with a wildcard externalGroupsWhitelist entry.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-47839

Published

UAA

Vendor product

Publisher's version information

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

{
                    "vendor": "Cloud Foundry Foundation",
                    "product": "UAA",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "77.30.0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "77.31.0"
                        }
                    ]
                }

cf-deployment

Vendor product

Publisher's version information

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

{
                    "vendor": "Cloud Foundry Foundation",
                    "product": "cf-deployment",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "48.9.0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "48.10.0"
                        }
                    ]
                }

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