HighFix available
haproxy — security advisory
A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
- Products
- haproxy
- Affected versions
- Not specified
- Fixed versions
- 1.8.13-2
- CVEs
- CVE-2018-14645
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:07 UTC · Revision 1
Source evidence
A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
osv:DEBIAN-CVE-2018-14645
haproxy
Fixed versions: 1.8.13-2
haproxy
Fixed versions: 1.8.13-2
haproxy
Fixed versions: 1.8.13-2
Complete source record
{
"id": "76c5e0849c89d2450f978d81ffe72b47a7d1c207fb068135b4772601cc3ab172",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-14645",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-14645",
"summary": "A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.",
"evidence": "osv:DEBIAN-CVE-2018-14645",
"products": [
{
"name": {
"value": "haproxy",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.8.13-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "haproxy",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.8.13-2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "haproxy",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.8.13-2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-14645",
"aliases": [
"DEBIAN-CVE-2018-14645"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.13-2"
}
]
}
],
"package": {
"name": "haproxy",
"purl": "pkg:deb/debian/haproxy?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14645.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.13-2"
}
]
}
],
"package": {
"name": "haproxy",
"purl": "pkg:deb/debian/haproxy?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14645.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.13-2"
}
]
}
],
"package": {
"name": "haproxy",
"purl": "pkg:deb/debian/haproxy?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14645.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:59.864370701Z",
"provider": "osv",
"upstream": [
"CVE-2018-14645"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-14645"
]
},
"related_cves": [
{
"value": "CVE-2018-14645",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 420050,
"published_at": "2018-09-21T13:29:00.453+00:00"
}