Medium
nagvis — security advisory
User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
- Products
- nagvis
- Affected versions
- 1:1.10.3-1, 1:1.10.4-1, 1:1.10.5-1, 1:1.10.6-1, 1:1.7.10+dfsg1-3, 1:1.7.10+dfsg1-3.2, 1:1.7.10+dfsg1-3ubuntu1, 1:1.9.25-2, 1:1.9.27-1, 1:1.9.28-1, 1:1.9.29-1, 1:1.9.30-1, 1:1.9.36-1, 1:1.9.38-1, 1:1.9.39-1, 1:1.9.40-1, 1:1.9.44-1, 1:1.9.46-1, 1:1.9.47-1, 1:1.9.48-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-39665
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:48 UTC · Revision 1
Source evidence
User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
osv:UBUNTU-CVE-2025-39665
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
nagvis
Fixed versions: Not specified
Complete source record
{
"id": "77ea5a67c9660c02d6d1ffc25e15457d1e31682bb4b5bd212402936dd8d39d41",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-39665",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-39665",
"summary": "User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.",
"evidence": "osv:UBUNTU-CVE-2025-39665",
"products": [
{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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"evidence": "/affected/5/versions"
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{
"value": "1:1.10.4-1",
"evidence": "/affected/5/versions"
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{
"value": "1:1.10.5-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:1.10.6-1",
"evidence": "/affected/5/versions"
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},
{
"name": {
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},
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],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-39665",
"aliases": [
"UBUNTU-CVE-2025-39665"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
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{
"type": "Ubuntu",
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"affected": [
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"database_specific": {
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},
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{
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],
"package": {
"name": "nagvis",
"purl": "pkg:deb/ubuntu/nagvis?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1:1.7.10+dfsg1-3.2"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "1:1.7.10+dfsg1-3.2"
},
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}
},
{
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"package": {
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"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"1:1.9.28-1",
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"ecosystem_specific": {
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{
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"ecosystem": "Ubuntu:25.10"
},
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],
"modified": "2026-10-17T12:57:27.361543035Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2025-39665",
"https://www.cve.org/CVERecord?id=CVE-2025-39665",
"https://github.com/NagVis/nagvis/pull/411",
"https://github.com/NagVis/nagvis/pull/411/commits/4acabcf9d5b2d26f390e760f59def8e163908d66",
"https://www.nagvis.org/downloads/changelog/1.9.48"
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"evidence": "/upstream"
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 357525,
"published_at": "2025-12-03T10:15:00+00:00"
}