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CVE-2026-41642Published

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP due to a nil pointer dereference. When a malformed BGP UPD…

Exact source revision recorded 25 Oct 2026 09:17:41 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

nvd · CVE-2026-41642

Published

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP due to a nil pointer dereference. When a malformed BGP UPDATE message contains an unrecognized Path Attribute marked as "Well-known," the daemon fails to interrupt the message handling flow. This results in an illegal memory access and a full process crash (panic). This issue has been patched in version 4.4.0.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-476

Original publisher date fields

published: 2026-05-07T12:16:17.460

lastModified: 2026-06-17T10:46:55.717

1 source CPE criteria · context only
  • cpe:2.3:a:osrg:gobgp:4.3.0:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
7 May 2026 12:16:17 UTC
Source modified
17 Jun 2026 10:46:55 UTC
Observed here
25 Oct 2026 09:17:41 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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Sources read 1 Nov 19:21 UTC · 275 of 275 readable · 272 fully read · documentation 469/469 current

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