CVE-2026-47840
LDAP StartTLS unconditionally disables hostname verification
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | cloudfoundry foundation |
| Product | uaa |
| Published | Jul 9, 2026 |
| Last Updated | Jul 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None
Affected Versions
CloudFoundry Foundation / UAA
0 < 78.13.0
CloudFoundry Foundation / Cf-deployment
0 < 56.2.0