{"id":"CVE-2026-116137","published":"2026-10-25T12:16:30.250","lastModified":"2026-10-25T12:16:30.373","description":"adm-zip through 0.6.1 contains a duplicate-entry validation bypass that allows attackers to evade the readEntries() check by using canonically equivalent entry names like './hello.txt' and 'hello.txt'. Attackers can craft ZIP archives where getEntry() or readAsText() validates benign content while extractAllTo() writes malicious content to the same path, bypassing integrity checks.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-436"],"vendors":[],"products":[],"references":[{"url":"https://github.com/cthackers/adm-zip","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/adm-zip.js#L87","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/util/utils.js#L383","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/zipFile.js#L81-L92","tags":[]},{"url":"https://github.com/cthackers/adm-zip/issues/587","tags":[]},{"url":"https://www.vulncheck.com/advisories/adm-zip-through-0.6.1-duplicate-entry-validation-bypass-via-canonically-equivalent-names","tags":[]}],"exploitRefs":[{"url":"https://github.com/cthackers/adm-zip","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/adm-zip.js#L87","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/util/utils.js#L383","tags":[]},{"url":"https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/zipFile.js#L81-L92","tags":[]},{"url":"https://github.com/cthackers/adm-zip/issues/587","tags":[]}],"hasPoc":true,"ai":null}