MediumFix available
openssh — security advisory
In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.
- Products
- openssh
- Affected versions
- Not specified
- Fixed versions
- 9.0_p1-r5, 9.1_p1-r5, 9.6_p1-r0
- CVEs
- CVE-2023-51384
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:04 UTC · Revision 1
Source evidence
In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.
osv:ALPINE-CVE-2023-51384
openssh
Fixed versions: 9.0_p1-r5
openssh
Fixed versions: 9.1_p1-r5
openssh
Fixed versions: 9.6_p1-r0
openssh
Fixed versions: 9.6_p1-r0
openssh
Fixed versions: 9.6_p1-r0
openssh
Fixed versions: 9.6_p1-r0
openssh
Fixed versions: 9.6_p1-r0
openssh
Fixed versions: 9.6_p1-r0
Complete source record
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"url": "https://osv.dev/vulnerability/ALPINE-CVE-2023-51384",
"method": "structured",
"payload": {
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"title": "ALPINE-CVE-2023-51384",
"summary": "In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.",
"evidence": "osv:ALPINE-CVE-2023-51384",
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"aliases": [
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"affected": [
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"package": {
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"package": {
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"package": {
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},
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"package": {
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"package": {
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],
"modified": "2026-10-26T17:17:58.659688012Z",
"provider": "osv",
"upstream": [
"CVE-2023-51384"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2023-51384"
]
},
"related_cves": [
{
"value": "CVE-2023-51384",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 454570,
"published_at": "2023-12-18T19:15:08.72+00:00"
}