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

0.2%

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?

Exploit prediction (EPSS)0.2% · higher than 6% of CVEs

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