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generate_man.js: Catch path traversal issues #1439

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Merged
slusarz merged 1 commit into from
Feb 27, 2026
Merged

generate_man.js: Catch path traversal issues #1439

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11 changes: 9 additions & 2 deletions util/generate_man.js
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Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,15 @@ const doInclude = (content, includes, f) => {
if (!m1.length) return m
/* VitePress MD supports paths relative to base with leading
* '@'. */
if (m1.startsWith('@'))
return doInclude(fs.readFileSync(process.cwd() + '/' + m1.slice(1), 'utf8'), includes, f)
if (m1.startsWith('@')) {
const cwd = process.cwd()
const targetPath = path.resolve(cwd, m1.slice(1))
const relative = path.relative(cwd, targetPath)
if (relative.startsWith('..') || path.isAbsolute(relative)) {
throw new Error("Path traversal detected in include: " + m1)
}
return doInclude(fs.readFileSync(targetPath, 'utf8'), includes, f)
}
const inc_f = path.basename(m1)
for (const fn of includes) {
if (path.basename(fn) == inc_f)
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