What is CVE-2026-45154?

CVE-2026-45154 is a low-severity vulnerability in Nextcloud Security-advisories, classified under Improper Access Control. CVSS score: 2.6/10. Published 2026-06-01.

How severe is CVE-2026-45154?

Low severity. CVSS v3 base score is 2.6 out of 10.

Vulnerability in Nextcloud Security-advisories

CVE-2026-45154

Nextcloud is an open source content collaboration platform. From version 2.6.0 to before version 4.3.0, when a previous collective pages was deleted and the collective was shared view-only, guests with access to the collective were able to…

EPSS: 0.000 (7.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Nextcloud Security-advisories — versions >= 2.6.0, < 4.3.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-45154?: CVE-2026-45154 is a low-severity vulnerability in Nextcloud Security-advisories, classified under Improper Access Control. CVSS score: 2.6/10. Published 2026-06-01.
How severe is CVE-2026-45154?: Low severity. CVSS v3 base score is 2.6 out of 10.