CVE-2026-30405

HIGHNVD 7.57.5—Elevated

7.5

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

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 44.8%
KEV: Not listed

Published

March 16, 2026

Last Modified

April 7, 2026

References (1)

cve@mitrehttps://github.com/osrg/gobgp/issues/3305

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
go	github.com/osrg/gobgp/v4	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 1 ecosystem)

Go(3)

Package	Vulnerable range	Fixed in	Dependents
github.com/osrg/gobgp	—	—	—
github.com/osrg/gobgp/v3	—	—	—
github.com/osrg/gobgp/v4	—	—	—

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
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2026-05-28 13:44 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
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2026-05-26 13:44 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
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2026-05-24 16:59 UTCepss_batch
2026-05-23 15:21 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2026-30405?

CVE-2026-30405 is a high vulnerability published on March 16, 2026. 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

When was CVE-2026-30405 disclosed?

CVE-2026-30405 was first published in the National Vulnerability Database on March 16, 2026, with the most recent update on April 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-30405 actively exploited?

CVE-2026-30405 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-30405?

CVE-2026-30405 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2026-30405?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30405, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-30405

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