Bug 2525586 (CVE-2026-40204)

Summary: CVE-2026-40204 dovecot: dovecot: lda_mailbox_autocreate can bypass acl restrictions
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Dovecot. This vulnerability allows an attacker to bypass Access Control List (ACL) restrictions through the `lda_mailbox_autocreate` feature. This could potentially grant unauthorized access to mailboxes or other restricted resources.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2526681    
Bug Blocks:    

Description OSIDB Bzimport 2026-08-28 11:24:23 UTC
None None None No publicly available exploits are known.