Vulnerability in Xddxdd Bird-Lg-Go
CVE-2026-26514
An Argument Injection vulnerability exists in bird-lg-go before commit 6187a4e. The traceroute module uses shlex.Split to parse user input without validation, allowing remote attackers to inject arbitrary flags (e.g., -w, -q) via the q parameter. This can be exploited to cause a Denial of Service (DoS) by exhausting system resources.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/xddxdd/bird-lg-go/issues/136 (Exploit, Issue Tracking, Vendor Advisory)
- github.com/xddxdd/bird-lg-go/commit/6187a4e3afce6d8c29568f8c72ca497d1f5a2b56 (Patch)
Frequently asked questions
- What is CVE-2026-26514?
- CVE-2026-26514 is a high-severity vulnerability in Xddxdd Bird-Lg-Go, classified under Argument Injection. CVSS score: 7.5/10. Published 2026-03-04.
- How severe is CVE-2026-26514?
- High severity. CVSS v3 base score is 7.5 out of 10.