CVE-2026-41642
Last modified
CVE-2026-41642 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. In version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP due to a nil pointer dereference. 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. 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
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/v4.4.0Patch, Product
- https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4pxExploit, Vendor Advisory
- https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4pxExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-41642?
How severe is CVE-2026-41642?
How do I fix CVE-2026-41642?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-41635Apache MINA's AbstractIoBuffer.resolveClass() contains two b…9.8
- CVE-2026-41636Uncontrolled Recursion vulnerability in Apache Thrift Node.j…7.5
- CVE-2026-41637In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, cli…3.7
- CVE-2026-4164A flaw has been found in Wavlink WL-WN578W2 221110. Impacted…9.8
- CVE-2026-41640NocoBase is an AI-powered no-code/low-code platform for buil…8.8
- CVE-2026-41641NocoBase is an AI-powered no-code/low-code platform for buil…7.2
- CVE-2026-41643GoBGP is an open source Border Gateway Protocol (BGP) implem…7.5
- CVE-2026-41644monetr is a budgeting application for recurring expenses. Pr…7.1
- CVE-2026-41645Nuclei is a vulnerability scanner built on a simple YAML-bas…5.3
- CVE-2026-41646Nuclei is a vulnerability scanner built on a simple YAML-bas…5.5
- CVE-2026-41647Incus is a system container and virtual machine manager. Pri…6.5
- CVE-2026-41648Incus is a system container and virtual machine manager. Pri…5
Are you affected by CVE-2026-41642?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST