Low
Nextcloud Server's events information leaked with shared calendars on recurrence exceptions
Type: advisorySources: OSV
Nextcloud Server is a self hosted personal cloud system. Private shared calendar events' recurrence exceptions can be read by sharees. It is recommended that the Nextcloud Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1 and that the Nextcloud Enterprise Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-37887
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 01:05 UTC · Revision 1
Source evidence
Nextcloud Server's events information leaked with shared calendars on recurrence exceptions
core-osv · Original sourcePublished 14 Jun 2024, 15:48 UTC
Nextcloud Server is a self hosted personal cloud system. Private shared calendar events' recurrence exceptions can be read by sharees. It is recommended that the Nextcloud Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1 and that the Nextcloud Enterprise Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1.
osv:CVE-2024-37887
Complete source record
{
"id": "dcde63685b60fae62d763fc41ba65317936e7c3f25f8005c7cefa5fb606e4012",
"url": "https://osv.dev/vulnerability/CVE-2024-37887",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Nextcloud Server's events information leaked with shared calendars on recurrence exceptions",
"summary": "Nextcloud Server is a self hosted personal cloud system. Private shared calendar events' recurrence exceptions can be read by sharees. It is recommended that the Nextcloud Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1 and that the Nextcloud Enterprise Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1.",
"evidence": "osv:CVE-2024-37887",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2024-37887",
"aliases": [
"CVE-2024-37887",
"GHSA-h4xv-cjpm-j595"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nextcloud/server",
"type": "GIT",
"events": [
{
"introduced": "add4e4365a4040d2e4e6aa79c0d03c3edd78583c"
},
{
"fixed": "f7e1218ad98ab77de36edb7bd3ad3124d6e78ba9"
},
{
"introduced": "e15fcecaf0d382cebff924ec2b1f5319e130c0e8"
},
{
"fixed": "5481d81792b3eec0fddbb8bf56d78c1188519509"
},
{
"introduced": "36ae775aa7c9af22bf33645a2d8807206ec6c85f"
},
{
"last_affected": "36ae775aa7c9af22bf33645a2d8807206ec6c85f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "27.0.0"
},
{
"fixed": "27.1.10"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "27.0.0"
},
{
"fixed": "27.1.10"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "28.0.0"
},
{
"last_affected": "28.0.6"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "28.0.0"
},
{
"fixed": "28.0.6"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:29.0.0:-:*:*:-:*:*:*",
"range": [
{
"introduced": "29.0.0-NA"
},
{
"last_affected": "29.0.0-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:29.0.0:-:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "29.0.0-NA"
},
{
"last_affected": "29.0.0-NA"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"29.0.0-NA",
"v27.1.10rc2",
"v28.0.6rc1",
"v27.1.10rc1",
"v28.0.5",
"v27.1.9",
"v29.0.0",
"v27.1.9rc1",
"v28.0.5rc1",
"v28.0.4",
"v27.1.8",
"v27.1.8rc1",
"v28.0.4rc1",
"v28.0.3",
"v27.1.7",
"v27.1.7rc2",
"v28.0.3rc2",
"v27.1.7rc1",
"v28.0.3rc1",
"v28.0.2",
"v28.0.2rc5",
"v28.0.2rc4",
"v27.1.6",
"v28.0.2rc3",
"v28.0.2rc2",
"v27.1.6rc2",
"v27.1.6rc1",
"v28.0.2rc1",
"v28.0.1",
"v28.0.1rc1",
"v27.1.5",
"v28.0.0",
"v27.1.5rc1",
"v27.1.4",
"v27.1.4rc1",
"v27.1.3",
"v27.1.3rc2",
"v27.1.3rc1",
"v27.1.2",
"v27.1.2rc1",
"v27.1.1",
"v27.1.0",
"v27.1.0rc4",
"v27.1.0rc3",
"v27.1.0rc2",
"v27.1.0rc1",
"v27.1.0beta3",
"v27.1.0beta2",
"v27.0.2",
"v27.0.2rc1",
"v27.0.1",
"v27.0.1rc2",
"v27.0.1rc1",
"v27.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-37887.json"
}
}
],
"modified": "2026-10-28T02:30:41.261438418Z",
"provider": "osv",
"references": [
"https://hackerone.com/reports/2479325",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/37xxx/CVE-2024-37887.json",
"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h4xv-cjpm-j595",
"https://nvd.nist.gov/vuln/detail/CVE-2024-37887",
"https://github.com/nextcloud/server/pull/45309"
],
"provider_metadata": {
"cwe_ids": [
"CWE-284"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/37xxx/CVE-2024-37887.json"
}
},
"related_cves": [
{
"value": "CVE-2024-37887",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 508879,
"published_at": "2024-06-14T15:48:11.867+00:00"
}