No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
zt-zip is a Java library that provides convenience methods for ZIP archive manipulation. Prior to 1.18.0, the Zips.get(zip).unpack().destination(outputDir).process() fluent API in src/main/java/org/zeroturnaround/zip/Zips.java constructs output files directly from ZIP entry names without applying the destination-boundary validation used by ZipUtil.unpack(...). A crafted entry containing parent-directory traversal can therefore write outside outputDir through both the normal copy branch and the ZipEntryTransformer branch. Applications that extract untrusted archives only through ZipUtil.unpack(...) are unaffected because that API already calls checkDestinationFileForTraversal. This issue is fixed in version 1.18.0.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 03 Nov 2026
- Last modified upstream: 12 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/zeroturnaround/zt-zip/commit/59a76ad576b0fcd50ea018e3608afb946c1492fd
- https://github.com/zeroturnaround/zt-zip/pull/180
- https://github.com/zeroturnaround/zt-zip/releases/tag/v1.18.0
- https://github.com/zeroturnaround/zt-zip/security/advisories/GHSA-52c6-99qm-3hqr
- https://github.com/zeroturnaround/zt-zip/security/advisories/GHSA-52c6-99qm-3hqr
- Analysis, summary and remediation
- © VulnCrest