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Fencer Intel
critical 9.8

CVE-2017-5946 json

Directory traversal vulnerability in RubyZip

published 2017-02-27 9 y ago modified 2026-06-17 4 mo ago also GHSA-gcqq-w6gr-h9j9 , EUVD-2017-0236

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

The Zip::File component in the rubyzip gem before 1.2.1 for Ruby has a directory traversal vulnerability. If a site allows uploading of .zip files, an attacker can upload a malicious file that uses "../" pathname substrings to write arbitrary files to the filesystem.

Patch / fix

  • rubygems rubyzip 1.2.1
  • rubyzip_project rubyzip 1.2.1
  • ruby-zip Debian 14, Debian 13, Debian 12 1.2.0-1.1

debian advisories DEBIAN-CVE-2017-5946

  • rubygem-rubyzip openSUSE Tumbleweed 2.3.2-1.19
  • rubygem-rubyzip openSUSE Tumbleweed 2.3.2-1.17
  • rubygem-rubyzip openSUSE Tumbleweed 2.3.2-1.15
  • ruby3.2-rubygem-rubyzip openSUSE Tumbleweed 2.3.2-1.11

opensuse advisories openSUSE-SU-2026:10363-1openSUSE-SU-2025:15126-1openSUSE-SU-2024:14176-1openSUSE-SU-2024:13168-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-5946 updated cvss 7.0

rubygem-rubyzip: Directory traversal in the Zip::File component

  • Red Hat Quickstart Cloud Installer 1 tfm-rubygem-rubyzip
    under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.44% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
rubygems rubyzip
<1.2.1
1.2.1

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.