CVE-2026-47839Federated OIDC Users Can Bypass externalGroupsWhitelist to Gain uaa.admin
Updated under an hour ago ()
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It affects Cloud Foundry Foundation UAA and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- vmware
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Cloud Foundry Foundation UAA cloud_foundry_foundation:uaa (from the name) | through 77.30.0; 77.31.0 not affected | CNA record |
Cloud Foundry Foundation cf-deployment cloud_foundry_foundation:cf_deployment (from the name) | through 48.9.0; 48.10.0 not affected | CNA record |
References
- https://www.cloudfoundry.org/blog/cve-2026-47839-federated-oidc-users-can-bypass-externalgroupswhitelist-to-gain-uaa-admin/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.