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Description

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.

PUBLISHED Reserved 2026-05-20 | Published 2026-07-09 | Updated 2026-07-09 | Assigner vmware




HIGH: 8.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

Problem types

CWE-297 Improper Validation of Certificate with Host Mismatch

Product status

Default status
unaffected

Any version before 78.13.0
affected

Default status
unaffected

Any version before 56.2.0
affected

References

www.cloudfoundry.org/...ally-disables-hostname-verification/

cve.org (CVE-2026-47840)

nvd.nist.gov (CVE-2026-47840)

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