CVE-2026-61915

State: Published
Severity: 4.2 Medium
Published: Sep 9, 2026
Updated: Sep 10, 2026
Reserved: Jul 13, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L	mitre

Weaknesses

CWE-415 Double Free

Affected Products

Product	Versions
Cyrus IMAPcyrusimap	before 3.8.8Affected 3.9.0 to before 3.10.4Affected 3.11.0 to before 3.12.4Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.