{"id":"CVE-2026-116137","revision":"59110dd31e6042b787afbd82670a870d","records":[{"revision":"59110dd31e6042b787afbd82670a870d","observedAt":"2026-10-25T13:17:04.381+00:00","statement":{"source":"cve-program","id":"CVE-2026-116137","aliases":[],"title":"adm-zip through 0.6.1 Duplicate-Entry Validation Bypass via Canonically Equivalent Names","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.","state":0,"publishedAt":"2026-10-25T11:51:01.98+00:00","modifiedAt":"2026-10-25T11:51:01.98+00:00","affected":[{"ecosystem":"Vendor product","name":"adm-zip","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"cthackers\",\n                    \"product\": \"adm-zip\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/adm-zip\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"0.6.1\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7,"severity":"LOW"}],"references":["https://github.com/cthackers/adm-zip/issues/587","https://github.com/cthackers/adm-zip","https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/zipFile.js#L81-L92","https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/adm-zip.js#L87","https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d9872/util/utils.js#L383","https://www.vulncheck.com/advisories/adm-zip-through-0.6.1-duplicate-entry-validation-bypass-via-canonically-equivalent-names"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116137","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116137","identifiers":["CVE-2026-116137"]},"retained":false,"historicalAffected":[]}],"coverage":[]}