Low 2.6Published Jun 1, 2026

CVE-2026-45154Nextcloud: Improper Access Control in Collectives

Updated under an hour ago (Oct 26, 2026, 10:23 AM ET)

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It affects nextcloud security-advisories. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nextcloud security-advisories

Exploited in the last 30 days

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 access the deleted pages directly from the trashbin. This issue has been patched in version 4.3.0.

CVSS: 2.6 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jun 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nextcloud security-advisories nextcloud:security_advisories (from the name)	from 2.6.0, < 4.3.0	CNA record

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3wx-refsource-confirm
https://github.com/nextcloud/collectives/pull/2432x-refsource-misc
https://hackerone.com/reports/3521434x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.