medium4.2
CVE-2026-61915
An issue was discovered in Cyrus IMAP before 3.12.4.
Impact
An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker with a PATCH containing PATCH-ACTION="BYPARAM@..." against a resource with two or more properties of the matched kind. The memory holding the selector would be freed once on each iteration over the properties.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cyrus | Imap | before 3.8.8 from 3.9.0 before 3.10.4 from 3.11.0 before 3.12.4 |