CVE-2026-77171: A public shared collective always allowed recipients of the link to create pages

Low severity · published Oct 27, 2026

CVE-2026-77171

A public shared collective always allowed recipients of the link to create pages

New

3.5

CVSS

–

EPSS

On KEV

Description

A public shared collective always allowed recipients of the link to create pages.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

Required

Confidentiality

None

Integrity

Low

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Collectives · Nextcloud

4.0.0 through 4.0.0 · source: vendor

Affected product

Collectives

Nextcloud

All Collectives CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-77171

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-77171

hackerone.com

https://hackerone.com/reports/3533697