HighFix available
gobgp — security advisory
A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.
- Products
- gobgp
- Affected versions
- 3.10.0-1, 3.16.0-1, 3.19.0-1, 3.21.0-1, 3.23.0-1, 3.25.0-1, 3.27.0-1, 3.28.0-1, 3.29.0-1, 3.30.0-1, 3.31.0-1, 3.32.0-1, 3.33.0-1, 3.35.0-1, 3.36.0-1, 3.36.0-2, 4.3.0-1, 4.4.0-1, 4.5.0-1, 4.5.0-1~bpo13+1, 4.6.0-1, 4.6.0-2, 4.6.0-2~bpo13+1, 4.7.0-1, 4.7.0-1~bpo13+1, 4.8.0-1, 4.8.0-1~bpo13+1, 4.8.0-2~exp1
- Fixed versions
- 4.4.0-1
- CVEs
- CVE-2026-7734
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:53 UTC · Revision 2
Source evidence
A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.
osv:DEBIAN-CVE-2026-7734
gobgp
Fixed versions: Not specified
gobgp
Fixed versions: Not specified
gobgp
Fixed versions: 4.4.0-1
Complete source record
{
"id": "8664560cb92aab7c4d341d0e8f5f0ac398fc702cd4f5b87dad5f043ac85e4466",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-7734",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-7734",
"summary": "A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.",
"evidence": "osv:DEBIAN-CVE-2026-7734",
"products": [
{
"name": {
"value": "gobgp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.10.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.16.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.19.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.21.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.23.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.25.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.27.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.28.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.29.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.30.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.31.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.32.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.33.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.35.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.36.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.36.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.4.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.0-1~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-2~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "4.7.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.7.0-1~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "4.8.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.8.0-1~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "4.8.0-2~exp1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "gobgp",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.36.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.3.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.4.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.5.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.5.0-1~bpo13+1",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.0-2~bpo13+1",
"evidence": "/affected/1/versions"
},
{
"value": "4.7.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.7.0-1~bpo13+1",
"evidence": "/affected/1/versions"
},
{
"value": "4.8.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.8.0-1~bpo13+1",
"evidence": "/affected/1/versions"
},
{
"value": "4.8.0-2~exp1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "gobgp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.4.0-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.36.0-2",
"evidence": "/affected/2/versions"
},
{
"value": "4.3.0-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-7734",
"aliases": [
"DEBIAN-CVE-2026-7734"
],
"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": "gobgp",
"purl": "pkg:deb/debian/gobgp?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.10.0-1",
"3.16.0-1",
"3.19.0-1",
"3.21.0-1",
"3.23.0-1",
"3.25.0-1",
"3.27.0-1",
"3.28.0-1",
"3.29.0-1",
"3.30.0-1",
"3.31.0-1",
"3.32.0-1",
"3.33.0-1",
"3.35.0-1",
"3.36.0-1",
"3.36.0-2",
"4.3.0-1",
"4.4.0-1",
"4.5.0-1",
"4.5.0-1~bpo13+1",
"4.6.0-1",
"4.6.0-2",
"4.6.0-2~bpo13+1",
"4.7.0-1",
"4.7.0-1~bpo13+1",
"4.8.0-1",
"4.8.0-1~bpo13+1",
"4.8.0-2~exp1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7734.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "gobgp",
"purl": "pkg:deb/debian/gobgp?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.36.0-2",
"4.3.0-1",
"4.4.0-1",
"4.5.0-1",
"4.5.0-1~bpo13+1",
"4.6.0-1",
"4.6.0-2",
"4.6.0-2~bpo13+1",
"4.7.0-1",
"4.7.0-1~bpo13+1",
"4.8.0-1",
"4.8.0-1~bpo13+1",
"4.8.0-2~exp1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7734.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.4.0-1"
}
]
}
],
"package": {
"name": "gobgp",
"purl": "pkg:deb/debian/gobgp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.36.0-2",
"4.3.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7734.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T10:02:16.205501167Z",
"provider": "osv",
"upstream": [
"CVE-2026-7734"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-7734"
]
},
"related_cves": [
{
"value": "CVE-2026-7734",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461429,
"published_at": "2026-05-04T06:16:02.197+00:00"
}