UnratedFix available
python-tornado vulnerabilities
Type: advisorySources: OSV
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls. (CVE-2023-54397, CVE-2024-14029, CVE-2026-91990, CVE-2026-91992, CVE-2026-103262, CVE-2026-103263)
- Products
- python-tornado
- Affected versions
- 4.2.1-1ubuntu2, 4.2.1-1ubuntu3, 4.2.1-1ubuntu3.1, 4.2.1-1ubuntu3.1+esm1, 4.2.1-1ubuntu3.1+esm2, 4.2.1-1ubuntu3.1+esm3, 4.5.1-2.1~build2, 4.5.2-1, 4.5.3-1, 4.5.3-1ubuntu0.1, 4.5.3-1ubuntu0.2, 4.5.3-1ubuntu0.2+esm1, 4.5.3-1ubuntu0.2+esm2, 4.5.3-1ubuntu0.2+esm3, 5.1.1-4ubuntu1, 5.1.1-4ubuntu5, 6.0.3+really5.1.1-2, 6.0.3+really5.1.1-2build1, 6.0.3+really5.1.1-2build2, 6.0.3+really5.1.1-3, 6.0.3+really5.1.1-3ubuntu0.1~esm1, 6.0.3+really5.1.1-3ubuntu0.1~esm3, 6.0.3+really5.1.1-3ubuntu0.1~esm5, 6.1.0-1build1, 6.1.0-2, 6.1.0-3, 6.1.0-3build1, 6.1.0-3ubuntu0.1~esm1, 6.1.0-3ubuntu0.1~esm2, 6.1.0-3ubuntu0.1~esm4, 6.1.0-3ubuntu0.1~esm5, 6.3.2-1, 6.4.0-0ubuntu1, 6.4.0-1, 6.4.0-1build1, 6.4.0-1ubuntu0.1, 6.4.0-1ubuntu0.2, 6.4.0-1ubuntu0.4, 6.4.0-1ubuntu0.5, 6.4.2-3, 6.5.2-3, 6.5.4-0.1, 6.5.4-0.1ubuntu0.1, 6.5.5-2, 6.5.5-4, 6.5.5-5
- Fixed versions
- 4.2.1-1ubuntu3.1+esm4, 4.5.3-1ubuntu0.2+esm4, 6.0.3+really5.1.1-3ubuntu0.1~esm7, 6.1.0-3ubuntu0.1~esm6, 6.4.0-1ubuntu0.6, 6.5.4-0.1ubuntu0.2, 6.5.5-5ubuntu1.1
- CVEs
- CVE-2023-54397, CVE-2024-14029, CVE-2026-103262, CVE-2026-103263, CVE-2026-91990, CVE-2026-91992
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:07 UTC · Revision 1
Source evidence
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls. (CVE-2023-54397, CVE-2024-14029, CVE-2026-91990, CVE-2026-91992, CVE-2026-103262, CVE-2026-103263)
osv:USN-8952-1
python-tornado
Fixed versions: 4.2.1-1ubuntu3.1+esm4
python-tornado
Fixed versions: 4.5.3-1ubuntu0.2+esm4
python-tornado
Fixed versions: 6.0.3+really5.1.1-3ubuntu0.1~esm7
python-tornado
Fixed versions: 6.1.0-3ubuntu0.1~esm6
python-tornado
Fixed versions: 6.4.0-1ubuntu0.6
python-tornado
Fixed versions: 6.5.5-5ubuntu1.1
python-tornado
Fixed versions: 6.5.4-0.1ubuntu0.2
Complete source record
{
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"url": "https://osv.dev/vulnerability/USN-8952-1",
"method": "structured",
"payload": {
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"title": "python-tornado vulnerabilities",
"summary": "It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls. (CVE-2023-54397, CVE-2024-14029, CVE-2026-91990, CVE-2026-91992, CVE-2026-103262, CVE-2026-103263)",
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"affected_versions": [
{
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{
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{
"value": "6.4.0-1ubuntu0.2",
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{
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{
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"id": "CVE-2023-54397",
"severity": [
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{
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},
{
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{
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{
"type": "CVSS_V4",
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},
{
"type": "Ubuntu",
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{
"id": "CVE-2026-91992",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V4",
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},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2026-103262",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
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},
{
"type": "Ubuntu",
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},
{
"id": "CVE-2026-103263",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V4",
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},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
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}
},
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{
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},
{
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{
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"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2026-91990",
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2026-91992",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2026-103262",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2026-103263",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-tornado",
"binary_version": "4.5.3-1ubuntu0.2+esm4"
},
{
"binary_name": "python3-tornado",
"binary_version": "4.5.3-1ubuntu0.2+esm4"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
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}
]
}
],
"package": {
"name": "python-tornado",
"purl": "pkg:deb/ubuntu/python-tornado?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"5.1.1-4ubuntu1",
"5.1.1-4ubuntu5",
"6.0.3+really5.1.1-2",
"6.0.3+really5.1.1-2build1",
"6.0.3+really5.1.1-2build2",
"6.0.3+really5.1.1-3",
"6.0.3+really5.1.1-3ubuntu0.1~esm1",
"6.0.3+really5.1.1-3ubuntu0.1~esm3",
"6.0.3+really5.1.1-3ubuntu0.1~esm5"
],
"database_specific": {
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"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
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{
"binary_name": "python3-tornado",
"binary_version": "6.0.3+really5.1.1-3ubuntu0.1~esm7"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
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{
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},
{
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}
]
}
],
"package": {
"name": "python-tornado",
"purl": "pkg:deb/ubuntu/python-tornado?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"6.1.0-1build1",
"6.1.0-2",
"6.1.0-3",
"6.1.0-3build1",
"6.1.0-3ubuntu0.1~esm1",
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],
"modified": "2026-10-22T23:28:02.157190811Z",
"provider": "osv",
"upstream": [
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"CVE-2024-14029",
"CVE-2026-103262",
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"CVE-2026-91990",
"CVE-2026-91992",
"UBUNTU-CVE-2023-54397",
"UBUNTU-CVE-2024-14029",
"UBUNTU-CVE-2026-103262",
"UBUNTU-CVE-2026-103263",
"UBUNTU-CVE-2026-91990",
"UBUNTU-CVE-2026-91992"
],
"references": [
"https://ubuntu.com/security/notices/USN-8952-1",
"https://ubuntu.com/security/CVE-2023-54397",
"https://ubuntu.com/security/CVE-2024-14029",
"https://ubuntu.com/security/CVE-2026-91990",
"https://ubuntu.com/security/CVE-2026-91992",
"https://ubuntu.com/security/CVE-2026-103262",
"https://ubuntu.com/security/CVE-2026-103263"
]
},
"related_cves": [
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"value": "CVE-2023-54397",
"evidence": "/upstream"
},
{
"value": "CVE-2024-14029",
"evidence": "/upstream"
},
{
"value": "CVE-2026-103262",
"evidence": "/upstream"
},
{
"value": "CVE-2026-103263",
"evidence": "/upstream"
},
{
"value": "CVE-2026-91990",
"evidence": "/upstream"
},
{
"value": "CVE-2026-91992",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410142,
"published_at": "2026-10-22T12:07:23+00:00"
}