Bug 2467704 (CVE-2026-41643) - CVE-2026-41643 github.com/osrg/gobgp: GoBGP: Denial of Service via malformed BGP UPDATE message
Summary: CVE-2026-41643 github.com/osrg/gobgp: GoBGP: Denial of Service via malformed ...
Keywords:
Status: NEW
Alias: CVE-2026-41643
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-07 13:01 UTC by OSIDB Bzimport
Modified: 2026-07-02 15:50 UTC (History)
106 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-07 13:01:35 UTC 
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.
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