HIGHCVSS 7.5Vulnerability
CVE-2026-85396
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.
Properties
- severity
- HIGH
- cvss_severity
- HIGH
- cvss_score
- 7.5
- retrieved_at
- 2026-09-25T15:10:08+00:00
- score
- 7.5
- last_source
- NVD
- cve_id
- CVE-2026-85396
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- signal_observed_at
- 2026-09-25T15:10:08+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- published_at
- 2026-09-03T19:17:31.527
- last_modified
- 2026-09-24T20:28:01.780
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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