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CVE-2026-47840LDAP StartTLS unconditionally disables hostname verification
A network attacker positioned between UAA and its LDAP directory can impersonate the directory using any certificate from any trusted CA, then harvest the LDAP bind password and every end-user password sent during simple-bind authentication, and return forged group memberships that grant themselves admin scopes. This affects every deployment that authenticates users against LDAP over StartTLS. Affected versions: UAA versions prior to v78.13.0; Cf-deployment versions prior to v56.2.0.
9.3 CRITICALEPSS 0.21%Not in KEVNVD: Awaiting Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.3 | CRITICAL | 4.0vmware (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| 8.3 | HIGH | 4.0vmware (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| 7.5 | HIGH | 3.1vmware (CNA) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N |
Details
- CVE ID
- CVE-2026-47840
- Status
- Awaiting Analysis
- Assigner (CNA)
- vmware
- Published
- Jul 9, 2026
- Last modified
- 2026-07-09 16:39 UTC
Affected Products
As published by the CNA in the CVE record.
CloudFoundry FoundationUAA1 version range
- before 78.13.0
CloudFoundry FoundationCf-deployment1 version range
- before 56.2.0