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.
Metrics
Affected Vendors & Products
References
History
Thu, 07 May 2026 20:00:00 +0000
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| CPEs | cpe:2.3:a:osrg:gobgp:4.3.0:*:*:*:*:*:*:* |
Thu, 07 May 2026 16:00:00 +0000
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Osrg
Osrg gobgp |
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| Vendors & Products |
Osrg
Osrg gobgp |
Thu, 07 May 2026 13:15:00 +0000
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ssvc
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Thu, 07 May 2026 12:15:00 +0000
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| Description | 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. | |
| Title | GoBGP: Remote Denial of Service (Panic) via Malformed Well-known Path Attribute | |
| Weaknesses | CWE-476 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-07T12:34:38.588Z
Reserved: 2026-04-21T23:58:43.801Z
Link: CVE-2026-41642
Updated: 2026-05-07T12:32:47.501Z
Status : Analyzed
Published: 2026-05-07T12:16:17.460
Modified: 2026-05-07T19:46:05.597
Link: CVE-2026-41642
No data.
OpenCVE Enrichment
Updated: 2026-05-07T15:45:32Z