What is CVE-2026-45275?

CVE-2026-45275 is a medium-severity vulnerability in Nextcloud Approval, classified under Improper Authorization. CVSS score: 6.5/10. Published 2026-06-01.

How severe is CVE-2026-45275?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Nextcloud Approval

CVE-2026-45275

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with app…

EPSS: 0.000 (7.7th 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

Nextcloud Approval
Nextcloud Security-advisories — versions < 2.7.2

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-45275?: CVE-2026-45275 is a medium-severity vulnerability in Nextcloud Approval, classified under Improper Authorization. CVSS score: 6.5/10. Published 2026-06-01.
How severe is CVE-2026-45275?: Medium severity. CVSS v3 base score is 6.5 out of 10.