UBUNTU-CVE-2026-26445 (CVE-2026-26445)
Vulnerability from osv_ubuntu – Published: 2026-08-26 20:17 – Updated: 2026-09-03 19:28 – Source website
VLAI
Details
stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.
Severity
7.5 (High)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-stomper",
"binary_version": "0.3.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.3.0-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-stomper",
"binary_version": "0.3.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.3.0-1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-stomper",
"binary_version": "0.4.1-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.4.1-2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.1-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-stomper",
"binary_version": "0.4.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.4.3-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.1-2",
"0.4.3-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-stomper",
"binary_version": "0.4.3-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.4.3-3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.3-2",
"0.4.3-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-stomper",
"binary_version": "0.4.3-3build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "stomper",
"purl": "pkg:deb/ubuntu/stomper@0.4.3-3build1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.3-3",
"0.4.3-3build1"
]
}
],
"aliases": [],
"details": "stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.",
"id": "UBUNTU-CVE-2026-26445",
"modified": "2026-09-03T19:28:11Z",
"published": "2026-08-26T20:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-26445"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-26445"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-26445"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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