HighFix available
trafficserver — security advisory
Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.
- Products
- trafficserver
- Affected versions
- Not specified
- Fixed versions
- 8.0.8+ds-1
- CVEs
- CVE-2020-9494
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:15 UTC · Revision 1
Source evidence
Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.
osv:DEBIAN-CVE-2020-9494
trafficserver
Fixed versions: 8.0.8+ds-1
Complete source record
{
"id": "d3ff3544a581105f2264bcea52a6c111a6bc3298cb064951f2405fd3a5803e8a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-9494",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-9494",
"summary": "Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.",
"evidence": "osv:DEBIAN-CVE-2020-9494",
"products": [
{
"name": {
"value": "trafficserver",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.0.8+ds-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-9494",
"aliases": [
"DEBIAN-CVE-2020-9494"
],
"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": "8.0.8+ds-1"
}
]
}
],
"package": {
"name": "trafficserver",
"purl": "pkg:deb/debian/trafficserver?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-9494.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:09.500890859Z",
"provider": "osv",
"upstream": [
"CVE-2020-9494"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-9494"
]
},
"related_cves": [
{
"value": "CVE-2020-9494",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452024,
"published_at": "2020-06-24T16:15:11.067+00:00"
}