Critical
otrs2, znuny — security advisory
An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X * (OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected
- Products
- otrs2, znuny
- Affected versions
- 4.0.10-1, 5.0.1-1, 5.0.1-2, 5.0.2-1, 5.0.23-1, 5.0.24-1, 5.0.3-1, 5.0.5-1, 5.0.6-1, 5.0.7-1, 6.0.1-1, 6.0.2-1, 6.0.20-1, 6.0.23-2, 6.0.24-1, 6.0.25-1, 6.0.25-2, 6.0.25-3, 6.0.26-1, 6.0.3-1, 6.0.32-6, 6.0.4-1, 6.0.5-1, 6.1.2-1, 6.2.1-1, 6.2.2-2, 6.5.15-2, 6.5.18-1, 6.5.20-1, 6.5.21-1, 6.5.22-1, 6.5.23-1, 6.5.3-1, 6.5.4-1, 6.5.5-1, 6.5.6-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-48188
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:07 UTC · Revision 1
Source evidence
An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X * (OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected
osv:UBUNTU-CVE-2026-48188
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
znuny
Fixed versions: Not specified
znuny
Fixed versions: Not specified
znuny
Fixed versions: Not specified
Complete source record
{
"id": "4309c8f55ff0f3ec0c309206593c6e8ccbd57fea03d8828b15177f8aada93ea8",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-48188",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-48188",
"summary": "An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X * (OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected",
"evidence": "osv:UBUNTU-CVE-2026-48188",
"products": [
{
"name": {
"value": "otrs2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.0.10-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.6-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.7-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "otrs2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.23-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.0.24-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.5-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "otrs2",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.20-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.23-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.24-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-3",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.26-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "otrs2",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.32-6",
"evidence": "/affected/3/versions"
},
{
"value": "6.1.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.2.1-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.2.2-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.3-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.4-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.5-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.6-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.18-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.20-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.21-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.22-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.23-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.15-2",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.18-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2026-48188",
"aliases": [
"UBUNTU-CVE-2026-48188"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"4.0.10-1",
"5.0.1-1",
"5.0.1-2",
"5.0.2-1",
"5.0.3-1",
"5.0.5-1",
"5.0.6-1",
"5.0.7-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "5.0.7-1"
},
{
"binary_name": "otrs2",
"binary_version": "5.0.7-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"5.0.23-1",
"5.0.24-1",
"6.0.1-1",
"6.0.2-1",
"6.0.3-1",
"6.0.4-1",
"6.0.5-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.5-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.5-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"6.0.20-1",
"6.0.23-2",
"6.0.24-1",
"6.0.25-1",
"6.0.25-2",
"6.0.25-3",
"6.0.26-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.26-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.26-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"6.0.32-6",
"6.1.2-1",
"6.2.1-1",
"6.2.2-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.2.2-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
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],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"6.5.3-1",
"6.5.4-1",
"6.5.5-1",
"6.5.6-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.6-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.6-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"6.5.18-1",
"6.5.20-1",
"6.5.21-1",
"6.5.22-1",
"6.5.23-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.23-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.23-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"6.5.15-2",
"6.5.18-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48188.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.18-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.18-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:22.684061983Z",
"provider": "osv",
"upstream": [
"CVE-2026-48188"
],
"references": [
"https://ubuntu.com/security/CVE-2026-48188",
"https://www.cve.org/CVERecord?id=CVE-2026-48188",
"https://www.znuny.org/en/advisories/zsa-2026-13"
]
},
"related_cves": [
{
"value": "CVE-2026-48188",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360452,
"published_at": "2026-06-01T04:16:00+00:00"
}