Search/CVE-2026-61909
● CVE — Low

CVE-2026-61909

VendorcyrusProductimapDiscoveredSep 9, 2026UpdatedSep 16, 2026

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. 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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CVSS v3.1
3.5 LOW
EPSS
0.20%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 11, 2026 → Sep 27, 2026
● 0.00pp
0.20% → 0.20% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeCHANGED
ConfidentialityLOW
IntegrityNONE
AvailabilityNONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Connections
2 relationships
Timeline
disclosure → media coverage
Sep 9, 2026
Disclosure — published as a CVE record. · last revised by NVD Sep 16, 2026