Vulnerability · Published Mar 16, 2026 · Assigned by mitre
CVE-2026-30405
High 7.5
In plain English
A high-severity uncontrolled resource consumption in the gobgp package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 70.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gobgp | no fix listed | DEBIAN-CVE-2026-30405 |
| Debian:13 | gobgp | no fix listed | DEBIAN-CVE-2026-30405 |
| Debian:14 | gobgp | 4.3.0-1 | DEBIAN-CVE-2026-30405 |
| Go | github.com/osrg/gobgp | no fix listed | GO-2026-4736 |
| Go | github.com/osrg/gobgp/v3 | no fix listed | GO-2026-4736 |
| Go | github.com/osrg/gobgp/v4 | 4.4.0 | GHSA-4p9m-8gc4-rw2h |
| Go | github.com/osrg/gobgp/v4 | no fix listed | GO-2026-4736 |
| Ubuntu:25.10 | gobgp | no fix listed | UBUNTU-CVE-2026-30405 |
| Ubuntu:26.10 | gobgp | no fix listed | UBUNTU-CVE-2026-30405 |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H