Bug 2526308 (CVE-2026-61909) - CVE-2026-61909 cyrus-imapd: cyrus-imapd: CalDAV/CardDAV multiget bypasses per-href ACL
Summary: CVE-2026-61909 cyrus-imapd: cyrus-imapd: CalDAV/CardDAV multiget bypasses per...
Keywords:
Status: NEW
Alias: CVE-2026-61909
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2531316
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-31 14:13 UTC by OSIDB Bzimport
Modified: 2026-09-10 08:37 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-31 14:13:57 UTC 
An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or addressbook-multiget REPORT.
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