CVE•Published 2026-09-09•Modified 2026-09-09•0 articles on news•4 live references•NVD data
CVE-2026-61909
Vulnerability data via NVD (ingested)
CVSS v3.1
3.5
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-09-09
Modified 2026-09-09
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-61909Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-61909Censys host search filtered to this CVE id.
grep.app
CVE-2026-61909Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-61909GitHub code search for direct mentions.
Google dork
"CVE-2026-61909" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-61909 on GitHub.
We haven't classified any articles referencing CVE-2026-61909 yet. The external references above still apply.