High
stomper — security advisory
Stomper 5e2741e is vulnerable to Use-After-Free. When a single client repeatedly issues SUBSCRIBE commands for the same destination over one connection and then closes that connection, the broker performs incorrect cleanup of its internal subscription structures. This results in a heap use-after-free during StompClient destruction, causing the broker process to crash. An unauthenticated client can exploit this to reliably trigger a denial of service.
- Products
- stomper
- Affected versions
- 0.3.0-1, 0.4.1-2, 0.4.3-1, 0.4.3-2, 0.4.3-3, 0.4.3-3build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-26447
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:56 UTC · Revision 1
Source evidence
Stomper 5e2741e is vulnerable to Use-After-Free. When a single client repeatedly issues SUBSCRIBE commands for the same destination over one connection and then closes that connection, the broker performs incorrect cleanup of its internal subscription structures. This results in a heap use-after-free during StompClient destruction, causing the broker process to crash. An unauthenticated client can exploit this to reliably trigger a denial of service.
osv:UBUNTU-CVE-2026-26447
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
stomper
Fixed versions: Not specified
Complete source record
{
"id": "1b95f361262010273f8cb3902cee305e874835c0c81f598e7d3c93c7d04f2a34",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-26447",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-26447",
"summary": "Stomper 5e2741e is vulnerable to Use-After-Free. When a single client repeatedly issues SUBSCRIBE commands for the same destination over one connection and then closes that connection, the broker performs incorrect cleanup of its internal subscription structures. This results in a heap use-after-free during StompClient destruction, causing the broker process to crash. An unauthenticated client can exploit this to reliably trigger a denial of service.",
"evidence": "osv:UBUNTU-CVE-2026-26447",
"products": [
{
"name": {
"value": "stomper",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.3.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
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}
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{
"name": {
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{
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{
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{
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"evidence": "/affected/4/versions"
}
]
},
{
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"evidence": "/affected/5/package/name"
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{
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},
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"affected_versions": [
{
"value": "0.4.3-3",
"evidence": "/affected/6/versions"
},
{
"value": "0.4.3-3build1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-26447",
"aliases": [
"UBUNTU-CVE-2026-26447"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.3.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26447.json"
},
"ecosystem_specific": {
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{
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}
]
}
},
{
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],
"package": {
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"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
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],
"database_specific": {
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"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
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],
"database_specific": {
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},
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"0.4.3-1"
],
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},
"versions": [
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],
"database_specific": {
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"ecosystem_specific": {
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"package": {
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"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.4.3-3build1"
],
"database_specific": {
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},
"ecosystem_specific": {
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.4.3-3",
"0.4.3-3build1"
],
"database_specific": {
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},
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}
]
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}
],
"modified": "2026-10-17T12:56:18.125743126Z",
"provider": "osv",
"upstream": [
"CVE-2026-26447"
],
"references": [
"https://ubuntu.com/security/CVE-2026-26447",
"https://www.cve.org/CVERecord?id=CVE-2026-26447"
]
},
"related_cves": [
{
"value": "CVE-2026-26447",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355179,
"published_at": "2026-08-26T20:17:00+00:00"
}