Critical
genshi — security advisory
Server side template inject (SSTI) in the expression evaluation component in Genshi Template Engine version 0.7.9 allows a remote attacker to achieve remote code execution (RCE) via crafted template expressions.
- Products
- genshi
- Affected versions
- 0.7-5, 0.7-6, 0.7.1-5, 0.7.10-1, 0.7.10-2, 0.7.10-2build1, 0.7.3-0ubuntu1, 0.7.3-0ubuntu2, 0.7.3-0ubuntu3, 0.7.3-0ubuntu3.1, 0.7.5-1, 0.7.5-2, 0.7.6-1, 0.7.6-1build1, 0.7.7-4, 0.7.7-4build1, 0.7.7-4build2, 0.7.9-2build1, 0.7.9-2build2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-0685
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:56 UTC · Revision 1
Source evidence
Server side template inject (SSTI) in the expression evaluation component in Genshi Template Engine version 0.7.9 allows a remote attacker to achieve remote code execution (RCE) via crafted template expressions.
osv:UBUNTU-CVE-2026-0685
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
genshi
Fixed versions: Not specified
Complete source record
{
"id": "5be201541bacc6ee005f2e0b4a419de8c4772d6b6ba877a88a4470eee9dc42be",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-0685",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-0685",
"summary": "Server side template inject (SSTI) in the expression evaluation component in Genshi Template Engine version 0.7.9 allows a remote attacker to achieve remote code execution (RCE) via crafted template expressions.",
"evidence": "osv:UBUNTU-CVE-2026-0685",
"products": [
{
"name": {
"value": "genshi",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7-5",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7-6",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.1-5",
"evidence": "/affected/2/versions"
},
{
"value": "0.7.3-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "0.7.3-0ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "0.7.3-0ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "0.7.3-0ubuntu3.1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.5-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.5-2",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.6-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.6-1build1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.7-4",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.7-4build1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.7-4build2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.9-2build1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.10-2build1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "genshi",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.9-2build1",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.9-2build2",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.10-1",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.10-2",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.10-2build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2026-0685",
"aliases": [
"UBUNTU-CVE-2026-0685"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.7-5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-genshi",
"binary_version": "0.7-5"
},
{
"binary_name": "python3-genshi",
"binary_version": "0.7-5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"0.7-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-genshi",
"binary_version": "0.7-6"
},
{
"binary_name": "python3-genshi",
"binary_version": "0.7-6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"0.7.1-5",
"0.7.3-0ubuntu1",
"0.7.3-0ubuntu2",
"0.7.3-0ubuntu3",
"0.7.3-0ubuntu3.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-genshi",
"binary_version": "0.7.3-0ubuntu3.1"
},
{
"binary_name": "python3-genshi",
"binary_version": "0.7.3-0ubuntu3.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.7.5-1",
"0.7.5-2",
"0.7.6-1",
"0.7.6-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-genshi",
"binary_version": "0.7.6-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.7.7-4",
"0.7.7-4build1",
"0.7.7-4build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-genshi",
"binary_version": "0.7.7-4build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.7.9-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-genshi",
"binary_version": "0.7.9-2build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.7.10-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-genshi",
"binary_version": "0.7.10-2build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "genshi",
"purl": "pkg:deb/ubuntu/genshi?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.7.9-2build1",
"0.7.9-2build2",
"0.7.10-1",
"0.7.10-2",
"0.7.10-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0685.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-genshi",
"binary_version": "0.7.10-2build1"
}
]
}
}
],
"modified": "2026-10-17T12:57:52.123920175Z",
"provider": "osv",
"upstream": [
"CVE-2026-0685"
],
"references": [
"https://ubuntu.com/security/CVE-2026-0685",
"https://www.cve.org/CVERecord?id=CVE-2026-0685",
"https://github.com/edgewall/genshi/",
"https://www.kb.cert.org/vuls/id/244846"
]
},
"related_cves": [
{
"value": "CVE-2026-0685",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357695,
"published_at": "2026-06-26T16:16:00+00:00"
}