CVE-2026-41643
Last modified
CVE-2026-41643 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. EPSS estimates a 0.50% chance of exploitation in the next 30 days.
Description
GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Osrg | Gobgp | < 4.3.0 |
References
- https://github.com/osrg/gobgp/releases/tag/v4.3.0Patch, Release Notes
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2qExploit, Vendor Advisory
- https://github.com/osrg/gobgp/security/advisories/GHSA-8rxh-r2p6-7f2qExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
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