Vulnerability 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.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/cthackers/adm-zip
- https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d98
- https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d98
- https://github.com/cthackers/adm-zip/blob/cb2cf9ba4c7c865db426e2de1997cb41194d98
- https://github.com/cthackers/adm-zip/issues/587
- https://www.vulncheck.com/advisories/adm-zip-through-0.6.1-duplicate-entry-valid
FAQ
What is CVE-2026-116137?
CVE-2026-116137 is a vulnerability with a CVSS score of 3.7 (LOW). 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'...
How severe is CVE-2026-116137?
CVE-2026-116137 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116137?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.