DEBIAN-CVE-2026-42285
GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.4.0, an unauthenticated remote BGP peer can trigger a fatal panic in GoBGP by sending a specially crafted BGP UPDATE message. When the server receives a message with inconsistent attribute lengths, it improperly handles the internal state transition to a "withdraw" action, leading to a nil pointer dereference in the AdjRib.Update function. This causes the entire GoBGP process to crash, resulting in a complete loss of service availability. This issue has been patched in version 4.5.0.
DEBIAN-CVE-2026-42285
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-42285
gobgp
Source reference: /affected/0/package/name
- Affected versions
- 3.36.0-2
Source reference:
/affected/0/versions4.3.0-1Source reference:
/affected/0/versions4.4.0-1Source reference:
/affected/0/versions4.5.0-1~bpo13+1Source reference:
/affected/0/versions - Fixed versions
- 4.5.0-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-1"
}
]
}
],
"package": {
"name": "gobgp",
"purl": "pkg:deb/debian/gobgp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.36.0-2",
"4.3.0-1",
"4.4.0-1",
"4.5.0-1~bpo13+1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56934 · Revision 1
- Added to Heist Feed
- Publisher date