Medium
multipath-tools — security advisory
A flaw was found in `multipathd`. A local attacker with access to the `multipathd` UNIX control socket can exploit this vulnerability by sending valid commands and then ceasing to read replies. This action can cause the `multipathd` listener thread to block, leading to a Denial of Service (DoS) where legitimate Inter-Process Communication (IPC) operations may hang or time out. This issue does not result in privilege escalation, arbitrary code execution, or impact data confidentiality or integrity.
- Products
- multipath-tools
- Affected versions
- 0.11.1-3ubuntu2, 0.12.0-1ubuntu1, 0.12.0-1ubuntu2, 0.12.0-1ubuntu3, 0.14.3-2ubuntu1, 0.14.3-3ubuntu1, 0.14.3-3ubuntu2, 0.4.9-3ubuntu7, 0.4.9-3ubuntu7.11, 0.4.9-3ubuntu7.12, 0.4.9-3ubuntu7.13, 0.4.9-3ubuntu7.14, 0.4.9-3ubuntu7.15, 0.4.9-3ubuntu7.16, 0.4.9-3ubuntu7.2, 0.4.9-3ubuntu7.4, 0.4.9-3ubuntu7.6, 0.4.9-3ubuntu7.7, 0.4.9-3ubuntu7.9, 0.5.0+git1.656f8865-5ubuntu1, 0.5.0+git1.656f8865-5ubuntu2, 0.5.0+git1.656f8865-5ubuntu2.1, 0.5.0+git1.656f8865-5ubuntu2.2, 0.5.0+git1.656f8865-5ubuntu2.3, 0.5.0+git1.656f8865-5ubuntu2.4, 0.5.0+git1.656f8865-5ubuntu2.5, 0.5.0-7ubuntu10, 0.5.0-7ubuntu11, 0.5.0-7ubuntu12, 0.5.0-7ubuntu14, 0.5.0-7ubuntu15, 0.5.0-7ubuntu16, 0.5.0-7ubuntu7, 0.5.0-7ubuntu8, 0.5.0-7ubuntu9, 0.6.4-5ubuntu1, 0.7.4-2ubuntu1, 0.7.4-2ubuntu3, 0.7.4-2ubuntu3.1, 0.7.4-2ubuntu3.2, 0.7.9-3ubuntu6, 0.7.9-3ubuntu7, 0.8.3-1ubuntu1, 0.8.3-1ubuntu2, 0.8.3-1ubuntu2.1, 0.8.3-1ubuntu2.2, 0.8.3-1ubuntu2.3, 0.8.3-1ubuntu2.4, 0.8.5-2ubuntu2, 0.8.5-2ubuntu3, 0.8.8-1ubuntu1, 0.8.8-1ubuntu1.22.04.1, 0.8.8-1ubuntu1.22.04.3, 0.8.8-1ubuntu1.22.04.4, 0.9.4-5ubuntu3, 0.9.4-5ubuntu6, 0.9.4-5ubuntu7, 0.9.4-5ubuntu8, 0.9.4-5ubuntu8.1, 0.9.4-5ubuntu8.2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-89329
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:31 UTC · Revision 1
Source evidence
A flaw was found in `multipathd`. A local attacker with access to the `multipathd` UNIX control socket can exploit this vulnerability by sending valid commands and then ceasing to read replies. This action can cause the `multipathd` listener thread to block, leading to a Denial of Service (DoS) where legitimate Inter-Process Communication (IPC) operations may hang or time out. This issue does not result in privilege escalation, arbitrary code execution, or impact data confidentiality or integrity.
osv:UBUNTU-CVE-2026-89329
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
multipath-tools
Fixed versions: Not specified
Complete source record
{
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"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-89329",
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89329.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "kpartx",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "libmpathcmd0",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "libmpathpersist0",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "libmpathvalid0",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "libmultipath0",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "multipath-tools",
"binary_version": "0.14.3-2ubuntu1"
},
{
"binary_name": "multipath-tools-boot",
"binary_version": "0.14.3-2ubuntu1"
}
]
}
}
],
"modified": "2026-10-17T13:01:16.588477013Z",
"provider": "osv",
"upstream": [
"CVE-2026-89329"
],
"references": [
"https://ubuntu.com/security/CVE-2026-89329",
"https://www.cve.org/CVERecord?id=CVE-2026-89329",
"https://bugzilla.redhat.com/show_bug.cgi?id=2470013",
"https://github.com/opensvc/multipath-tools/security/advisories/GHSA-hmcm-9cq4-r2xm",
"https://access.redhat.com/security/cve/CVE-2026-89329"
]
},
"related_cves": [
{
"value": "CVE-2026-89329",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361465,
"published_at": "2026-09-11T19:17:00+00:00"
}