High
Security advisory
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-8121
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:20 UTC · Revision 1
Source evidence
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
osv:CVE-2020-8121
Complete source record
{
"id": "ccbff66fe1abba539017b2715838804bd8478e2e61b8f69f799d906a7b2958df",
"url": "https://osv.dev/vulnerability/CVE-2020-8121",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-8121",
"summary": "A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.",
"evidence": "osv:CVE-2020-8121",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-8121",
"aliases": [
"CVE-2020-8121"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nextcloud/server",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "68a1f2074e32a730b496748062cc83daf8247aec"
},
{
"introduced": "1b35dc1cbafe318933ba0c11212a9c3c6b787700"
},
{
"fixed": "32805f3d1a9f3a59f67ab71ef3a05b6760783162"
},
{
"introduced": "58d94d16a6e60988274230cdb625791f3426103f"
},
{
"fixed": "3bb46a2accb9d3c8557b64f0ec6e088d94f9dd70"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "13.0.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0"
},
{
"fixed": "14.0.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.6"
},
{
"fixed": "15.0.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v14.0.5RC1",
"v13.0.9RC2",
"v14.0.5RC2",
"v13.0.9RC1",
"v15.0.0RC3",
"v15.0.0RC2",
"v13.0.8",
"v15.0.0RC1",
"v14.0.4RC2",
"v14.0.4",
"v13.0.8RC2",
"v15.0.0beta2",
"v13.0.8RC1",
"v14.0.4RC1",
"v15.0.0beta1",
"v14.0.3",
"v13.0.7",
"v14.0.2",
"v13.0.7RC2",
"v14.0.2RC2",
"v13.0.7RC1",
"13.0.7RC1",
"v14.0.2RC1",
"14.0.2RC1",
"v14.0.1",
"v14.0.1RC1",
"v14.0.0",
"v14.0.0RC2",
"v13.0.6",
"v14.0.0RC1",
"v13.0.6RC1",
"v14.0.0beta4",
"v14.0.0beta3",
"v14.0.0beta2",
"v14.0.0beta1",
"v13.0.5",
"v13.0.5RC2",
"v13.0.5RC1",
"v13.0.4",
"v13.0.3",
"v13.0.3RC2",
"v13.0.3RC1",
"theming-1.4.5",
"v13.0.2",
"v13.0.2RC1",
"v13.0.1",
"v13.0.1RC1",
"v13.0.0",
"v13.0.0RC4",
"v13.0.0RC3",
"v13.0.0RC2",
"v13.0.0RC1",
"v13.0.0beta4",
"v13.0.0beta3",
"v13.0.0beta2",
"v13.0.0beta1",
"v12.0.0beta4",
"v12.0.0beta3",
"v12.0.0beta2",
"v12.0.0beta1",
"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-2020-8121.json"
}
}
],
"modified": "2026-10-24T10:30:52.063750276Z",
"provider": "osv",
"references": [
"https://nextcloud.com/security/advisory/?id=NC-SA-2019-003",
"https://hackerone.com/reports/452854"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-8121",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437608,
"published_at": "2020-02-04T20:15:14.307+00:00"
}