Medium
Security advisory
Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-0936
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:13 UTC · Revision 1
Source evidence
Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.
osv:CVE-2017-0936
Complete source record
{
"id": "9eef445472514f8a8dbc167c6c6b170903c1936adbdd71afa93c80d4abefdd87",
"url": "https://osv.dev/vulnerability/CVE-2017-0936",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-0936",
"summary": "Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.",
"evidence": "osv:CVE-2017-0936",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-0936",
"aliases": [
"CVE-2017-0936"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nextcloud/server",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "b7e000da94043671ba3aea23d65e029f55299b83"
},
{
"introduced": "42633b4d024fdad5f79c045e52afcedfc6d80f3e"
},
{
"last_affected": "42633b4d024fdad5f79c045e52afcedfc6d80f3e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "11.0.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:12.0.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "12.0.5"
},
{
"last_affected": "12.0.5"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"12.0.5",
"v12.0.5",
"v11.0.7RC3",
"v11.0.7RC2",
"v11.0.7RC1",
"v11.0.6",
"v11.0.6RC1",
"v11.0.5",
"v11.0.5RC1",
"v11.0.4",
"v11.0.4RC1",
"v11.0.3",
"v11.0.3RC2",
"v11.0.3RC1",
"v11.0.2",
"v11.0.2RC1",
"v11.0.1",
"v11.0.1RC1",
"v11.0.0",
"v11.0RC2",
"v9.1.0beta1",
"v9.0.0beta2",
"v9.0beta1",
"v8.2RC1",
"v8.2beta1",
"v8.1RC2",
"v8.1.0beta2",
"v8.1.0beta1",
"v8.1.0alpha2",
"v8.1.0alpha1",
"v8.0.0",
"v8.0.0RC2",
"v8.0.0RC1",
"v8.0.0beta2",
"v8.0.0beta1",
"v8.0.0alpha2",
"v8.0.0alpha1",
"v7.0.0beta1",
"v7.0.0alpha2",
"v6.0.0RC2",
"v6.0.0RC1",
"v6.0.0beta5",
"v6.0.0beta4",
"v6.0.0beta3",
"v6.0.0beta2",
"v6.0.0alpha2",
"v5.0.0",
"v5.0.0RC3",
"v5.0.0RC2",
"v5.0.0RC1",
"v5.0.0beta2",
"v5.0.0beta1",
"v5.0.0alpha1",
"v4.5.0",
"v4.5.0RC3",
"v4.5.0RC2",
"v4.5.0RC1",
"v4.5.0beta4",
"v4.5.0beta3",
"v4.0.6",
"v4.0.5",
"v4.0.4",
"v4.0.1",
"v4.0.0",
"v4.0.0RC2",
"v4.0.0RC",
"v4.0.0beta",
"v3.0",
"v1.0.0beta1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-0936.json"
}
}
],
"modified": "2026-10-24T10:30:25.856801674Z",
"provider": "osv",
"references": [
"https://hackerone.com/reports/297751",
"https://nextcloud.com/security/advisory/?id=nc-sa-2018-001"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2017-0936",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431462,
"published_at": "2018-03-28T20:29:00.27+00:00"
}