Description
An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gobgp | 4.3.0-1 | — |
| Debian 13 | gobgp | No fix yet | — |
| Debian 12 | gobgp | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gobgp | No fix yet | — |
| Ubuntu 25.10 | gobgp | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | gobgp | No fix yet | — |
| Ubuntu Pro 24.04 LTS | gobgp | No fix yet | — |
| Ubuntu Pro 22.04 LTS | gobgp | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gobgp | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gobgp | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | cilium-cli | 0.19.5-r0 | — |
| Wolfi rolling | kube-vip | 1.2.1-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/osrg/gobgp | all versions | — | GO-2026-4736 |
| Go | github.com/osrg/gobgp/v3 | all versions | — | GO-2026-4736 |
| Go | github.com/osrg/gobgp/v4 | < 4.4.0 | 4.4.0 | GHSA-4p9m-8gc4-rw2h |
| Go | github.com/osrg/gobgp/v4 | all versions | — | GO-2026-4736 |
Advisories 1
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026