What is CVE-2021-32656?

CVE-2021-32656 is a high-severity vulnerability in Nextcloud Security-advisories, classified under Improper Access Control. CVSS score: 8.6/10. Published 2021-06-01.

How severe is CVE-2021-32656?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Nextcloud Security-advisories

CVE-2021-32656

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by acc…

EPSS: 0.004 (62.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Nextcloud Security-advisories — versions < 19.0.11, >= 20.0.0, < 20.0.10, >= 21.0.0, < 21.0.2

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

github.com/nextcloud/security-advisories/security/advisories/GHSA-j875-vr2q-h6x6 (x_refsource_CONFIRM)
hackerone.com/reports/1167853 (x_refsource_MISC)
GLSA-202208-17 (vendor-advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2021-32656?: CVE-2021-32656 is a high-severity vulnerability in Nextcloud Security-advisories, classified under Improper Access Control. CVSS score: 8.6/10. Published 2021-06-01.
How severe is CVE-2021-32656?: High severity. CVSS v3 base score is 8.6 out of 10.