HighFix available
golang-github-lucas-clemente-quic-go — security advisory
quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.
- Products
- golang-github-lucas-clemente-quic-go
- Affected versions
- 0.29.0-1, 0.29.2-1, 0.29.2-2, 0.29.2-3, 0.37.0-1, 0.37.4-1, 0.37.4-1~bpo12+1, 0.38.2-1, 0.38.2-2, 0.46.0-1, 0.46.0-2, 0.46.0-2~bpo12+1, 0.50.0-1, 0.50.1-1, 0.50.1-2, 0.54.0-1, 0.54.0-2, 0.54.0-3, 0.54.1-1, 0.55.0-1, 0.59.0-1, 0.59.0-2, 0.59.0-2~bpo13+1, 0.64.1-1
- Fixed versions
- 0.54.1-1
- CVEs
- CVE-2025-59530
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:19 UTC · Revision 1
Source evidence
quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.
osv:DEBIAN-CVE-2025-59530
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: Not specified
golang-github-lucas-clemente-quic-go
Fixed versions: 0.54.1-1
Complete source record
{
"id": "e27f473f943bbc9fa0062902b00ab0bad35703e48a2fa19b5daa1a1c5163dbc9",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-59530",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-59530",
"summary": "quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.",
"evidence": "osv:DEBIAN-CVE-2025-59530",
"products": [
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.29.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.29.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.29.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.29.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.37.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.37.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.37.4-1~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "0.38.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.38.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.46.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.46.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.46.0-2~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "0.50.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.50.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.50.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.54.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.54.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.54.0-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.54.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.55.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.59.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.59.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.59.0-2~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "0.64.1-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.50.1-2",
"evidence": "/affected/1/versions"
},
{
"value": "0.54.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.54.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "0.54.0-3",
"evidence": "/affected/1/versions"
},
{
"value": "0.54.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.55.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.59.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.59.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "0.59.0-2~bpo13+1",
"evidence": "/affected/1/versions"
},
{
"value": "0.64.1-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "golang-github-lucas-clemente-quic-go",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.54.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "0.50.1-2",
"evidence": "/affected/2/versions"
},
{
"value": "0.54.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.54.0-2",
"evidence": "/affected/2/versions"
},
{
"value": "0.54.0-3",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2025-59530",
"aliases": [
"DEBIAN-CVE-2025-59530"
],
"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"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/debian/golang-github-lucas-clemente-quic-go?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.29.0-1",
"0.29.2-1",
"0.29.2-2",
"0.29.2-3",
"0.37.0-1",
"0.37.4-1",
"0.37.4-1~bpo12+1",
"0.38.2-1",
"0.38.2-2",
"0.46.0-1",
"0.46.0-2",
"0.46.0-2~bpo12+1",
"0.50.0-1",
"0.50.1-1",
"0.50.1-2",
"0.54.0-1",
"0.54.0-2",
"0.54.0-3",
"0.54.1-1",
"0.55.0-1",
"0.59.0-1",
"0.59.0-2",
"0.59.0-2~bpo13+1",
"0.64.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/debian/golang-github-lucas-clemente-quic-go?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.50.1-2",
"0.54.0-1",
"0.54.0-2",
"0.54.0-3",
"0.54.1-1",
"0.55.0-1",
"0.59.0-1",
"0.59.0-2",
"0.59.0-2~bpo13+1",
"0.64.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.54.1-1"
}
]
}
],
"package": {
"name": "golang-github-lucas-clemente-quic-go",
"purl": "pkg:deb/debian/golang-github-lucas-clemente-quic-go?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.50.1-2",
"0.54.0-1",
"0.54.0-2",
"0.54.0-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:04:36.920784615Z",
"provider": "osv",
"upstream": [
"CVE-2025-59530"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-59530"
]
},
"related_cves": [
{
"value": "CVE-2025-59530",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 423586,
"published_at": "2025-10-10T16:15:52.387+00:00"
}