A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.
https://access.redhat.com/errata/RHSA-2026:64811
https://access.redhat.com/errata/RHSA-2026:64804
https://access.redhat.com/errata/RHSA-2026:64793
https://access.redhat.com/errata/RHSA-2026:64792
https://access.redhat.com/errata/RHSA-2026:64791
https://access.redhat.com/errata/RHSA-2026:64790
https://access.redhat.com/errata/RHSA-2026:64789
https://access.redhat.com/errata/RHSA-2026:64785
https://access.redhat.com/errata/RHSA-2026:64784
https://access.redhat.com/errata/RHSA-2026:64783
https://access.redhat.com/errata/RHSA-2026:64781
https://access.redhat.com/errata/RHSA-2026:64780
https://access.redhat.com/errata/RHSA-2026:64779
https://access.redhat.com/errata/RHSA-2026:64778