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MEDIUM severity

CVE-2018-1002201 — zt-zip

MEDIUMFix: zeroturnaround/zt-zip@759b72f

CVE-2018-1002201 is a medium-severity (CVSS 5.5) Path Traversal vulnerability in org.zeroturnaround:zt-zip. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.zeroturnaround:zt-zip — see the affected versions and patch details below.

Improper Limitation of a Pathname to a Restricted Directory in zt-zip

Also known asGHSA-qcf3-9vmh-xw4rSNYK-JAVA-ORGZEROTURNAROUND-31681
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
3 known
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
10.4%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs96th percentile — riskier than 96% of all scored CVEsHighest risk
0.00%4.38%8.75%13.1%1.5%10.4%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.zeroturnaround:zt-zip

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

zt-zip before 1.13 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.zeroturnaround:zt-zipall versions1.13org.zeroturnaround:zt-zip:1.13

Affected Products

1 product · 1 configurations
Application
zt-zipjrebel
< 1.13
range
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

zt-zip before 1.13 is vulnerable to directory traversal, allowing attack…

snyk.ioNVDOct 2019

Report on snyk.io

snyk.ioNVDOct 2019

Report on github.com

github.comNVDOct 2019

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.zeroturnaround:zt-zip, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.zeroturnaround:zt-zip to 1.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1002201 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

zt-zip before 1.13 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
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CVE-2018-1002201: zt-zip Path Traversal — Fixed in 1.13