CVEvulnerability

CVE-2026-45286

4.3 MEDIUM Published 2026-06-01 Modified 2026-07-22 Official page ↗
Status
Analyzed
Published
2026-06-01
Last modified
2026-07-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-200

Description

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied to other endpoints, were not effective here. This issue has been patched in versions 5.5.17 and 6.2.3.

Affected configurations

• nextcloud calendar (>= 5.5.13 < 5.5.17) • nextcloud calendar (>= 6.2.0 < 6.2.3)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References