HighFix available
trafficserver — security advisory
Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.
- Products
- trafficserver
- Affected versions
- Not specified
- Fixed versions
- 8.1.1+ds-1.1
- CVEs
- CVE-2021-32567
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:49 UTC · Revision 1
Source evidence
Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.
osv:DEBIAN-CVE-2021-32567
trafficserver
Fixed versions: 8.1.1+ds-1.1
Complete source record
{
"id": "d6f204d47a30315b588dbd90f0386e99737d626abeb804c0f6c351d214964875",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-32567",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-32567",
"summary": "Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.",
"evidence": "osv:DEBIAN-CVE-2021-32567",
"products": [
{
"name": {
"value": "trafficserver",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.1+ds-1.1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2021-32567",
"aliases": [
"DEBIAN-CVE-2021-32567"
],
"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": "8.1.1+ds-1.1"
}
]
}
],
"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-2021-32567.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:49.144572111Z",
"provider": "osv",
"upstream": [
"CVE-2021-32567"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-32567"
]
},
"related_cves": [
{
"value": "CVE-2021-32567",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 422353,
"published_at": "2021-06-30T08:15:06.857+00:00"
}