{"id":"GHSA-mvhf-547c-h55r","summary":"thumbler allows OS Command Injection","details":"thumbler through 1.1.2 allows OS command injection via the input, output, time, or size parameter in the thumbnail() function because user input is concatenated into a shell command string passed to child_process.exec() without proper sanitization or escaping.","aliases":["CVE-2026-26833"],"modified":"2026-03-31T23:41:22.881450Z","published":"2026-03-25T18:31:47Z","database_specific":{"github_reviewed_at":"2026-03-31T23:24:12Z","nvd_published_at":"2026-03-25T16:16:21Z","cwe_ids":["CWE-78","CWE-94"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26833"},{"type":"PACKAGE","url":"https://github.com/mmahrous/thumbler"},{"type":"WEB","url":"https://github.com/mmahrous/thumbler/blob/master/lib/thumbler.js"},{"type":"WEB","url":"https://github.com/zebbernCVE/CVE-2026-26833"},{"type":"WEB","url":"https://www.npmjs.com/package/thumbler"}],"affected":[{"package":{"name":"thumbler","ecosystem":"npm","purl":"pkg:npm/thumbler"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.1.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mvhf-547c-h55r/GHSA-mvhf-547c-h55r.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}