GHSA-47m2-wp7j-p9vc

Suggest an improvement
Source
https://github.com/advisories/GHSA-47m2-wp7j-p9vc
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-47m2-wp7j-p9vc/GHSA-47m2-wp7j-p9vc.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-47m2-wp7j-p9vc
Aliases
Downstream
CGA (71)
MINI (8)
Published
2026-09-03T21:31:16Z
Modified
2026-09-25T19:45:09Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
rubyzip path traversal vulnerability
Details

rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trailing separators. Attackers can craft archive entries with names like ../upload_backup/owned.sh to write files outside the intended extraction directory into sibling paths sharing the destination prefix.

Database specific 
{
    "cwe_ids":  [
        "CWE-22"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-25T19:25:52Z",
    "nvd_published_at":  "2026-09-03T19:17:31Z",
    "severity":  "HIGH"
}
References

Affected packages

RubyGems / rubyzip

Package

Name
rubyzip
Purl
pkg:gem/rubyzip

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.4.0

Affected versions

0.*
0.5.7
0.5.8
0.5.9
0.5.11
0.5.12
0.9.1
0.9.4
0.9.5
0.9.6.1
0.9.7
0.9.8
0.9.9
1.*
1.0.0.beta1
1.0.0
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
1.3.0
2.*
2.0.0
2.1.0
2.2.0
2.3.0
2.3.1
2.3.2
2.4.rc1
2.4.1
3.*
3.0.0.alpha
3.0.0.rc1
3.0.0.rc2
3.0.0
3.0.1
3.0.2
3.1.0
3.1.1
3.2.0
3.2.1
3.2.2
3.3.0
3.3.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-47m2-wp7j-p9vc/GHSA-47m2-wp7j-p9vc.json"