High severity · published Jun 26, 2026
CVE-2026-56876
extract-zip unvalidated symlink path traversal
8.1
CVSS
0.5%
EPSS
No
On KEV
Description
extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EX
extract-zip · max-mapper
0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56876
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56876
Exploit
https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf
Third Party Advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json
Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-56876
More from extract-zip
8.1
CVE-2026-19693
extract-zip arbitrary file write outside the destination directory via a symlink at the final path component