CVE-2021-32726

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Source
https://cve.org/CVERecord?id=CVE-2021-32726
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32726.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-32726
Downstream
Related
Published
2021-07-12T20:15:10.037Z
Modified
2026-04-10T04:33:08.864208Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/nextcloud/server

Affected ranges

Type
GIT
Repo
https://github.com/nextcloud/server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3845aa47869e6787bf9b25cae59f9b999c6f7807
Introduced
615b994816710a595243d704c9be445f736b4b41
Fixed
3eb0ce9892933c36672e8ba35e771e48a5309321
Introduced
8985b7930653139859002eb3eca2852999ed8f0d
Fixed
5d04a3fed226c370feca686032f47d5422b02bb2
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "19.0.13"
        },
        {
            "introduced": "20.0.0"
        },
        {
            "fixed": "20.0.11"
        },
        {
            "introduced": "21.0.0"
        },
        {
            "fixed": "21.0.3"
        }
    ]
}

Affected versions

v1.*
v1.0.0beta1
v11.*
v11.0.0
v11.0RC2
v12.*
v12.0.0beta1
v12.0.0beta2
v12.0.0beta3
v12.0.0beta4
v13.*
v13.0.0RC1
v13.0.0beta1
v13.0.0beta2
v13.0.0beta3
v13.0.0beta4
v14.*
v14.0.0RC1
v14.0.0RC2
v14.0.0beta1
v14.0.0beta2
v14.0.0beta3
v14.0.0beta4
v15.*
v15.0.0RC1
v15.0.0beta1
v15.0.0beta2
v16.*
v16.0.0RC1
v16.0.0alpha1
v16.0.0beta1
v16.0.0beta2
v16.0.0beta3
v17.*
v17.0.0beta1
v17.0.0beta2
v17.0.0beta3
v17.0.0beta4
v18.*
v18.0.0RC1
v18.0.0beta1
v18.0.0beta2
v18.0.0beta3
v18.0.0beta4
v19.*
v19.0.0
v19.0.0RC1
v19.0.0RC3
v19.0.0beta1
v19.0.0beta2
v19.0.0beta3
v19.0.0beta4
v19.0.0beta5
v19.0.0beta6
v19.0.0beta7
v19.0.1
v19.0.10
v19.0.10RC1
v19.0.11
v19.0.11RC1
v19.0.13rc1
v19.0.1RC1
v19.0.2
v19.0.2RC1
v19.0.2RC2
v19.0.3
v19.0.3RC1
v19.0.4
v19.0.40RC1
v19.0.4RC2
v19.0.5
v19.0.5RC1
v19.0.5RC2
v19.0.6
v19.0.6RC2
v19.0.7
v19.0.7RC1
v19.0.8
v19.0.8RC1
v19.0.9
v19.0.9RC1
v20.*
v20.0.0
v20.0.1
v20.0.10
v20.0.10RC1
v20.0.11rc1
v20.0.1RC1
v20.0.2
v20.0.2RC1
v20.0.2RC2
v20.0.3
v20.0.3RC2
v20.0.4
v20.0.5
v20.0.5RC1
v20.0.5RC2
v20.0.6
v20.0.6RC1
v20.0.7
v20.0.7RC1
v20.0.8
v20.0.8RC1
v20.0.9
v20.0.9RC1
v21.*
v21.0.0
v21.0.1
v21.0.1RC1
v21.0.2
v21.0.2RC1
v21.0.3rc1
v3.*
v3.0
v4.*
v4.0.0
v4.0.0RC
v4.0.0RC2
v4.0.0beta
v4.0.1
v4.0.4
v4.0.5
v4.0.6
v4.5.0
v4.5.0RC1
v4.5.0RC2
v4.5.0RC3
v4.5.0beta3
v4.5.0beta4
v5.*
v5.0.0
v5.0.0RC1
v5.0.0RC2
v5.0.0RC3
v5.0.0alpha1
v5.0.0beta1
v5.0.0beta2
v6.*
v6.0.0RC1
v6.0.0RC2
v6.0.0alpha2
v6.0.0beta2
v6.0.0beta3
v6.0.0beta4
v6.0.0beta5
v7.*
v7.0.0alpha2
v7.0.0beta1
v8.*
v8.0.0
v8.0.0RC1
v8.0.0RC2
v8.0.0alpha1
v8.0.0alpha2
v8.0.0beta1
v8.0.0beta2
v8.1.0alpha1
v8.1.0alpha2
v8.1.0beta1
v8.1.0beta2
v8.1RC2
v8.2RC1
v8.2beta1
v9.*
v9.0.0beta2
v9.0beta1
v9.1.0beta1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32726.json"