CVE-2026-37461
HIGH7.5EPSS 0.05%GoBGP has an out-of-bounds read in the ParseIP6Extended function
Published: 5/4/2026Modified: 5/8/2026
Description
An out-of-bounds read in the ParseIP6Extended function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
Affected packages (2)
- Debian/gobgpfrom 0
- Go/github.com/osrg/gobgp/v4from 0, < 4.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-37461
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-37461
- PATCHhttps://github.com/osrg/gobgp
- WEBhttps://github.com/osrg/gobgp/blob/v4.3.0/pkg/packet/bgp/bgp.go
- WEBhttps://github.com/osrg/gobgp/commit/362cce3e325f56e7a4f792ccb9689b3bdda9e682
- WEBhttps://github.com/osrg/gobgp/commit/9ce8936672ebc07df524da77fa4c6ae26d92be6d