CVE-2026-30405
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
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
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 4.3.0-1 |
| forky | Fixed | 4.3.0-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/osrg/gobgp/v4 | <=4.3.0 | |
| Go | github.com/osrg/gobgp | | |
| Go | github.com/osrg/gobgp/v3 | | |
| Go | github.com/osrg/gobgp/v4 | | |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-30405
- https://github.com/osrg/gobgp/issues/3305
- https://github.com/osrg/gobgp/commit/583080a7258e22cc884162e15b078771aa2c2c80
- https://github.com/osrg/gobgp
- https://github.com/advisories/GHSA-4p9m-8gc4-rw2h
- https://security-tracker.debian.org/tracker/CVE-2026-30405
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.