CVE-2026-86345
CRITICAL
9,0
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in place of the client's own pending operation's response, due to messageID collision. This can cause a client application to treat a failed authentication (bind) attempt as successful.
923
Improper Restriction of Communication Channel to Intended Endpoints
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
Technologies:
Not Technology-Specific, Web Based, Web Server
https://access.redhat.com/security/cve/CVE-2026-86345
https://bugzilla.redhat.com/show_bug.cgi?id=2529332