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-workflows, etcd, loki, rabbitmq-cluster-operator
- Affected versions
- Not specified
- Fixed versions
- 2.23.1-r1, 3.5.12-r7, 3.5.29-r1, 4.0.12-r0
- CVEs
- CVE-2026-78669
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 03:22 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 24 Oct 2026, 00:36 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-IO40218
argo-workflows
Fixed versions: 4.0.12-r0
etcd
Fixed versions: 3.5.29-r1
loki
Fixed versions: 3.5.12-r7
loki
Fixed versions: 3.5.12-r7
loki
Fixed versions: 3.5.12-r7
loki
Fixed versions: 3.5.12-r7
rabbitmq-cluster-operator
Fixed versions: 2.23.1-r1
Complete source record
{
"id": "170ce317ad27fa8408535180294a1996d92874cca350fc6c0bd6743c71eede78",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-IO40218",
"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-IO40218",
"products": [
{
"name": {
"value": "argo-workflows",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.0.12-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "etcd",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.29-r1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "loki",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.12-r7",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "loki",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.12-r7",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "loki",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.12-r7",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "loki",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.12-r7",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rabbitmq-cluster-operator",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.23.1-r1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CLEANSTART-2026-IO40218",
"aliases": [
"CLEANSTART-2026-IO40218"
],
"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": "4.0.12-r0"
}
]
}
],
"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-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.29-r1"
}
]
}
],
"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-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-r7"
}
]
}
],
"package": {
"name": "loki",
"purl": "pkg:apk/cleanstart/loki?arch=x86_64",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-r7"
}
]
}
],
"package": {
"name": "loki",
"purl": "pkg:apk/cleanstart/loki?arch=aarch64",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-r7"
}
]
}
],
"package": {
"name": "loki",
"purl": "pkg:apk/cleanstart/loki?arch=ppc64le",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.12-r7"
}
]
}
],
"package": {
"name": "loki",
"purl": "pkg:apk/cleanstart/loki?arch=loongarch64",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IO40218.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.23.1-r1"
}
]
}
],
"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-IO40218.json"
}
}
],
"modified": "2026-10-24T00:45:06.268143820Z",
"provider": "osv",
"upstream": [
"CVE-2026-78669"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-IO40218.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": 427153,
"published_at": "2026-10-24T00:36:23.478933+00:00"
}