Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L L N U N L H 7.1 .0026 16.0 —
AFFECTED Product Versions Fixed Cyrus IMAP unspecified —
TIMELINE Jul 13 Reserved by mitre Sep 9 Published (CNA: mitre) Sep 16 RESCORED — CVE-2026-61915 (cyrusimap Cyrus IMAP). CVSS 4.2 → 7.1 (NVD).
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.
| Date | Event | Detail |
|---|---|---|
| July 13, 2026 | Reserved | Reserved by mitre |
| September 9, 2026 | Published | Published (CNA: mitre) |
| September 16, 2026 | RESCORED | RESCORED — CVE-2026-61915 (cyrusimap Cyrus IMAP). CVSS 4.2 → 7.1 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| cyrusimap | Cyrus IMAP | — | — | — |
Authoritative record: CVE-2026-61915 at cve.org
Vendors: cyrusimap
Weaknesses: CWE-415
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-61915 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
