VulnerabilityUndergoing Analysis
CVE-2026-61909
CalDAV/CardDAV multiget bypasses a per-href ACL.
LOW 3.5EPSS 0.20%
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 3.5 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- EPSS
- 0.20% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-420
- Source
- cve@mitre.org
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.