adm-zip before 0.6.1 Duplicate ZIP Entry Name Validation Bypass
adm-zip before 0.6.1 contains an inconsistent entry resolution vulnerability that allows attackers to bypass content validation by supplying ZIP archives with duplicate entry names. Attackers can craft archives where getEntry() returns the last duplicate while extractAllTo() writes the first, causing unvalidated bytes to be written to disk.
CVE-2026-114104
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-114104
adm-zip
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "cthackers",
"product": "adm-zip",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "0.6.1",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/adm-zip",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-114104
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #44976 · Revision 1
- Added to Heist Feed
- Publisher date