PT-2026-89813 · Cloud Foundry Foundation · Uaa+1

CVE-2026-47839

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Published

2026-09-11

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Updated

2026-09-11

CVSS v4.0

9.2

Critical

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.

Fix

Improper Access Control

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Weakness Enumeration

Related Identifiers

CVE-2026-47839

Affected Products

Uaa
Cf-Deployment