HighFix available
Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection
Type: advisorySources: OSV
CVE-2026-56855 affects multiple packages. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. See references for individual vulnerability details.
- Products
- argo-cd, argo-rollouts-fips, external-dns, istio-pilot-discovery, nfs-subdir-external-provisioner, ollama-fips, opentelemetry-collector-contrib, prometheus-mysqld-exporter, temporal-server, temporal-server-fips, weaviate-fips
- Affected versions
- Not specified
- Fixed versions
- 0.159.0-r4, 0.20.0-r3, 0.20.0-r4, 0.22.0-r2, 0.40.3-r1, 1.10.1-r1, 1.29.8-r1, 1.30.1-r3, 1.30.8-r1, 1.31.4-r1, 1.39.12-r0, 3.4.10-r1, 4.0.18-r3
- CVEs
- CVE-2026-56855
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 12:57 UTC · Revision 1
Source evidence
Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection
core-osv · Original sourcePublished 15 Oct 2026, 00:42 UTC
CVE-2026-56855 affects multiple packages. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. See references for individual vulnerability details.
osv:CLEANSTART-2026-CZ77656
ollama-fips
Fixed versions: 0.40.3-r1
ollama-fips
Fixed versions: 0.40.3-r1
temporal-server
Fixed versions: 1.30.8-r1
weaviate-fips
Fixed versions: 1.39.12-r0
temporal-server-fips
Fixed versions: 1.31.4-r1
argo-rollouts-fips
Fixed versions: 1.10.1-r1
prometheus-mysqld-exporter
Fixed versions: 0.20.0-r4
istio-pilot-discovery
Fixed versions: 1.29.8-r1
istio-pilot-discovery
Fixed versions: 1.30.1-r3
argo-cd
Fixed versions: 3.4.10-r1
external-dns
Fixed versions: 0.22.0-r2
nfs-subdir-external-provisioner
Fixed versions: 4.0.18-r3
opentelemetry-collector-contrib
Fixed versions: 0.159.0-r4
external-dns
Fixed versions: 0.20.0-r3
Complete source record
{
"id": "85e7062a79a40605790c1be62158ab91f5593e1faa76338ea1b1d2b3c868fb29",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-CZ77656",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection",
"summary": "CVE-2026-56855 affects multiple packages. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-CZ77656",
"products": [
{
"name": {
"value": "ollama-fips",
"evidence": "/affected/0/package/name"
},
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"fixed_versions": [
{
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{
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{
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"evidence": "/affected/2/package/name"
},
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{
"name": {
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},
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"evidence": "/affected/3/ranges"
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{
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"evidence": "/affected/4/ranges"
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"affected_versions": []
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
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"fixed_versions": [
{
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"evidence": "/affected/5/ranges"
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],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/6/package/name"
},
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{
"name": {
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"evidence": "/affected/7/package/name"
},
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{
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"evidence": "/affected/7/ranges"
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"affected_versions": []
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{
"name": {
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},
"prerequisites": [],
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{
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"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "argo-cd",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.10-r1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "external-dns",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.22.0-r2",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nfs-subdir-external-provisioner",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.0.18-r3",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "opentelemetry-collector-contrib",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.159.0-r4",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "external-dns",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.20.0-r3",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CLEANSTART-2026-CZ77656",
"aliases": [
"CLEANSTART-2026-CZ77656"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
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}
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}
],
"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-CZ77656.json"
}
},
{
"ranges": [
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"events": [
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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-CZ77656.json"
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.30.8-r1"
}
]
}
],
"package": {
"name": "temporal-server",
"purl": "pkg:apk/cleanstart/temporal-server",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "1.39.12-r0"
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],
"package": {
"name": "weaviate-fips",
"purl": "pkg:apk/cleanstart/weaviate-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.31.4-r1"
}
]
}
],
"package": {
"name": "temporal-server-fips",
"purl": "pkg:apk/cleanstart/temporal-server-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.1-r1"
}
]
}
],
"package": {
"name": "argo-rollouts-fips",
"purl": "pkg:apk/cleanstart/argo-rollouts-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.20.0-r4"
}
]
}
],
"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-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.29.8-r1"
}
]
}
],
"package": {
"name": "istio-pilot-discovery",
"purl": "pkg:apk/cleanstart/istio-pilot-discovery",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
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],
"package": {
"name": "istio-pilot-discovery",
"purl": "pkg:apk/cleanstart/istio-pilot-discovery",
"ecosystem": "CleanStart"
},
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"package": {
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"purl": "pkg:apk/cleanstart/argo-cd",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
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],
"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-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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{
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],
"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-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.159.0-r4"
}
]
}
],
"package": {
"name": "opentelemetry-collector-contrib",
"purl": "pkg:apk/cleanstart/opentelemetry-collector-contrib",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CZ77656.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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}
]
}
],
"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-CZ77656.json"
}
}
],
"modified": "2026-10-15T01:00:05.868184165Z",
"provider": "osv",
"upstream": [
"CVE-2026-56855"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-CZ77656.json",
"https://osv.dev/vulnerability/CVE-2026-56855",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56855"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-56855",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 318161,
"published_at": "2026-10-15T00:42:02.168262+00:00"
}