Vulnerability in Nextcloud Nextcloud_server

CVE-2026-45282

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, an authenticated attacker can access attachments of link shares when knowing the share toke…

EPSS: 0.000 (8.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-45282?
CVE-2026-45282 is a medium-severity vulnerability in Nextcloud Nextcloud_server, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-06-01.
How severe is CVE-2026-45282?
Medium severity. CVSS v3 base score is 6.5 out of 10.