MediumFix available
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate
Type: advisorySources: OSV
CVE-2026-39835 affects multiple packages. SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. See references for individual vulnerability details.
- Products
- external-dns, nfs-subdir-external-provisioner, ollama-fips, prometheus-mysqld-exporter
- Affected versions
- Not specified
- Fixed versions
- 0.20.0-r3, 0.20.0-r4, 0.40.3-r1, 4.0.18-r3
- CVEs
- CVE-2026-39835
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 12:58 UTC · Revision 1
Source evidence
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate
core-osv · Original sourcePublished 15 Oct 2026, 00:42 UTC
CVE-2026-39835 affects multiple packages. SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. See references for individual vulnerability details.
osv:CLEANSTART-2026-MK72782
ollama-fips
Fixed versions: 0.40.3-r1
ollama-fips
Fixed versions: 0.40.3-r1
prometheus-mysqld-exporter
Fixed versions: 0.20.0-r4
nfs-subdir-external-provisioner
Fixed versions: 4.0.18-r3
external-dns
Fixed versions: 0.20.0-r3
Complete source record
{
"id": "01a6d1f3a691807bccb2ad4bdc1f6f6b11a57b898d29a129a18a2366a6996c8a",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-MK72782",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate",
"summary": "CVE-2026-39835 affects multiple packages. SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-MK72782",
"products": [
{
"name": {
"value": "ollama-fips",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.40.3-r1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ollama-fips",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.40.3-r1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "prometheus-mysqld-exporter",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nfs-subdir-external-provisioner",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "CLEANSTART-2026-MK72782",
"aliases": [
"CLEANSTART-2026-MK72782"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.40.3-r1"
}
]
}
],
"package": {
"name": "ollama-fips",
"purl": "pkg:apk/cleanstart/ollama-fips?arch=x86_64",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-MK72782.json"
}
},
{
"ranges": [
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{
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],
"package": {
"name": "ollama-fips",
"purl": "pkg:apk/cleanstart/ollama-fips?arch=aarch64",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-MK72782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.20.0-r4"
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]
}
],
"package": {
"name": "prometheus-mysqld-exporter",
"purl": "pkg:apk/cleanstart/prometheus-mysqld-exporter",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-MK72782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.0.18-r3"
}
]
}
],
"package": {
"name": "nfs-subdir-external-provisioner",
"purl": "pkg:apk/cleanstart/nfs-subdir-external-provisioner",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-MK72782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0.20.0-r3"
}
]
}
],
"package": {
"name": "external-dns",
"purl": "pkg:apk/cleanstart/external-dns",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-MK72782.json"
}
}
],
"modified": "2026-10-15T01:00:18.890420730Z",
"provider": "osv",
"upstream": [
"CVE-2026-39835"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-MK72782.json",
"https://osv.dev/vulnerability/CVE-2026-39835",
"https://nvd.nist.gov/vuln/detail/CVE-2026-39835"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-39835",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 318277,
"published_at": "2026-10-15T00:42:01.132775+00:00"
}