CVE-2021-32726 - CVE House
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Status published High CVE-2021-32726

Webauthn tokens not removed after user has been deleted

Vulnerability Description

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, webauthn tokens were not deleted after a user has been deleted. If a victim reused an earlier used username, the previous user could gain access to their account. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

security-advisories
Vulnerable Versions:
< 19.0.13, >= 20.0.0, < 20.0.11, >= 21.0.0, < 21.0.3

Timeline

Official Publish: July 12th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-708

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.