PT-2026-42856 · Git · Tar
Quentin Stiévenart
·
Published
2026-05-22
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Updated
2026-06-15
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CVE-2026-45390
CVSS v3.1
9.1
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
In OCaml-tar before 3.4.0, a crafted archive with ../ path segments in its name allows escaping the current working directory. This is not desired behavior, and tar(1) rejects such extractions, but ocaml-tar decompresses it anyway. The impact is that it allows arbitrary file writes outside of the desired extraction directory (to an attacker that can reach a tar decompression endpoint).
Exploit
Fix
Path traversal
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Weakness Enumeration
Related Identifiers
Affected Products
Tar