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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.15% probability · 67th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Source
- disclosure@vulncheck.com
EPSS moved from 1.1% on 15 October 2026 to 1.1% on 26 October 2026.
References
- https://github.com/wastemobile/buildebooks
- https://github.com/wastemobile/buildebooks/blob/7fc313485447d9359fb38fda3cbc2ed60ce69fe7/lib/kindle.js#L5-L12
- https://github.com/wastemobile/buildebooks/commit/123776c9ef61e8075ada2f7da2f7046f6a8078d9
- https://github.com/wastemobile/buildebooks/pull/12
- https://www.vulncheck.com/advisories/buildebooks-before-0.2.2-os-command-injection-via-kindlegen-epub-file-name
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.