Critical
stomper — security advisory
Stomper 5e2741e is vulnerable to Use-After-Free. When a client sends multiple CONNECT frames on the same TCP connection, and subsequently another client (or a later connection) sends SEND frames to a destination previously subscribed on that connection, the broker may dereference a pointer to a StompStreamSocket object that has already been freed. This results in a heap use-after-free and process crash. Because the protocol does not authenticate or restrict such sequences by default.
- 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-2026-26448
- 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 client sends multiple CONNECT frames on the same TCP connection, and subsequently another client (or a later connection) sends SEND frames to a destination previously subscribed on that connection, the broker may dereference a pointer to a StompStreamSocket object that has already been freed. This results in a heap use-after-free and process crash. Because the protocol does not authenticate or restrict such sequences by default.
osv:UBUNTU-CVE-2026-26448
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": "903e31caeda44baebade579b5792f97b77cf01c8a19a2b701c5166757bffd47f",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-26448",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-26448",
"summary": "Stomper 5e2741e is vulnerable to Use-After-Free. When a client sends multiple CONNECT frames on the same TCP connection, and subsequently another client (or a later connection) sends SEND frames to a destination previously subscribed on that connection, the broker may dereference a pointer to a StompStreamSocket object that has already been freed. This results in a heap use-after-free and process crash. Because the protocol does not authenticate or restrict such sequences by default.",
"evidence": "osv:UBUNTU-CVE-2026-26448",
"products": [
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},
{
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"evidence": "/affected/6/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2026-26448",
"aliases": [
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],
"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": [
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},
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"database_specific": {
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"database_specific": {
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},
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],
"modified": "2026-10-17T12:56:18.342744032Z",
"provider": "osv",
"upstream": [
"CVE-2026-26448"
],
"references": [
"https://ubuntu.com/security/CVE-2026-26448",
"https://www.cve.org/CVERecord?id=CVE-2026-26448"
]
},
"related_cves": [
{
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"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355193,
"published_at": "2026-08-26T20:17:00+00:00"
}