RCE in Wastemobile Buildebooks
CVE-2026-110637
buildebooks before 0.2.2 contains an OS command injection vulnerability in lib/kindle.js that allows attackers to execute commands by supplying a crafted EPUB file name passed to kindlegen via child_process.exec. Attackers can craft a book project with a malicious front-matter filename or project folder name and kindle: true to execute OS commands as the user running buildebooks.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/wastemobile/buildebooks/pull/12 (issue-tracking, patch)
- github.com/wastemobile/buildebooks/commit/123776c9ef61e8075ada2f7da2f7046f6a807… (patch)
- github.com/wastemobile/buildebooks/blob/7fc313485447d9359fb38fda3cbc2ed60ce69fe… (technical-description)
- github.com/wastemobile/buildebooks (product)
- www.vulncheck.com/advisories/buildebooks-before-0.2.2-os-command-injection-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110637?
- CVE-2026-110637 is a high-severity vulnerability in Wastemobile Buildebooks, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-10-14.
- How severe is CVE-2026-110637?
- High severity. CVSS v3 base score is 7.8 out of 10.