HighFix available
malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW...
Type: advisorySources: OSV
CVE-2026-78669 affects multiple packages. A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values. See references for individual vulnerability details.
- Products
- argo-cd, argo-workflows, dex, etcd, grafana-rollout-operator, kyverno, mailpit, rabbitmq-cluster-operator
- Affected versions
- Not specified
- Fixed versions
- 0.36.1-r1, 1.18.1-r5, 1.29.7-r3, 2.19.2-r8, 2.20.1-r10, 2.21.1-r7, 2.22.4-r2, 2.45.1-r9, 3.2.3-r4, 3.5.29-r2, 3.6.10-r3, 4.1.1-r1
- CVEs
- CVE-2026-78669
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:30 UTC · Revision 1
Source evidence
malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW...
core-osv · Original sourcePublished 23 Oct 2026, 00:37 UTC
CVE-2026-78669 affects multiple packages. A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values. See references for individual vulnerability details.
osv:CLEANSTART-2026-PQ26148
etcd
Fixed versions: 3.5.29-r2
etcd
Fixed versions: 3.6.10-r3
dex
Fixed versions: 2.45.1-r9
grafana-rollout-operator
Fixed versions: 0.36.1-r1
rabbitmq-cluster-operator
Fixed versions: 2.21.1-r7
rabbitmq-cluster-operator
Fixed versions: 2.22.4-r2
kyverno
Fixed versions: 1.18.1-r5
rabbitmq-cluster-operator
Fixed versions: 2.19.2-r8
rabbitmq-cluster-operator
Fixed versions: 2.20.1-r10
argo-workflows
Fixed versions: 4.1.1-r1
argo-cd
Fixed versions: 3.2.3-r4
mailpit
Fixed versions: 1.29.7-r3
Complete source record
{
"id": "734817c41fe52cdee870682fa05e123e9bd172b6928a7fb5ff58c7f31dce1785",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-PQ26148",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW...",
"summary": "CVE-2026-78669 affects multiple packages. A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-PQ26148",
"products": [
{
"name": {
"value": "etcd",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.29-r2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "etcd",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.10-r3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dex",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.45.1-r9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "grafana-rollout-operator",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.36.1-r1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rabbitmq-cluster-operator",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.21.1-r7",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rabbitmq-cluster-operator",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.22.4-r2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kyverno",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.18.1-r5",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rabbitmq-cluster-operator",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.19.2-r8",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rabbitmq-cluster-operator",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.20.1-r10",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "argo-workflows",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.1.1-r1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "argo-cd",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.3-r4",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mailpit",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.29.7-r3",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CLEANSTART-2026-PQ26148",
"aliases": [
"CLEANSTART-2026-PQ26148"
],
"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"
},
{
"fixed": "3.5.29-r2"
}
]
}
],
"package": {
"name": "etcd",
"purl": "pkg:apk/cleanstart/etcd",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.10-r3"
}
]
}
],
"package": {
"name": "etcd",
"purl": "pkg:apk/cleanstart/etcd",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.45.1-r9"
}
]
}
],
"package": {
"name": "dex",
"purl": "pkg:apk/cleanstart/dex",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.36.1-r1"
}
]
}
],
"package": {
"name": "grafana-rollout-operator",
"purl": "pkg:apk/cleanstart/grafana-rollout-operator",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.21.1-r7"
}
]
}
],
"package": {
"name": "rabbitmq-cluster-operator",
"purl": "pkg:apk/cleanstart/rabbitmq-cluster-operator",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.22.4-r2"
}
]
}
],
"package": {
"name": "rabbitmq-cluster-operator",
"purl": "pkg:apk/cleanstart/rabbitmq-cluster-operator",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-r5"
}
]
}
],
"package": {
"name": "kyverno",
"purl": "pkg:apk/cleanstart/kyverno",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.19.2-r8"
}
]
}
],
"package": {
"name": "rabbitmq-cluster-operator",
"purl": "pkg:apk/cleanstart/rabbitmq-cluster-operator",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.20.1-r10"
}
]
}
],
"package": {
"name": "rabbitmq-cluster-operator",
"purl": "pkg:apk/cleanstart/rabbitmq-cluster-operator",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.1-r1"
}
]
}
],
"package": {
"name": "argo-workflows",
"purl": "pkg:apk/cleanstart/argo-workflows",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.3-r4"
}
]
}
],
"package": {
"name": "argo-cd",
"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-PQ26148.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.29.7-r3"
}
]
}
],
"package": {
"name": "mailpit",
"purl": "pkg:apk/cleanstart/mailpit",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-PQ26148.json"
}
}
],
"modified": "2026-10-23T00:45:13.223526349Z",
"provider": "osv",
"upstream": [
"CVE-2026-78669"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-PQ26148.json",
"https://osv.dev/vulnerability/CVE-2026-78669",
"https://nvd.nist.gov/vuln/detail/CVE-2026-78669"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-78669",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 411092,
"published_at": "2026-10-23T00:37:35.832093+00:00"
}