VULNERABILITY INTELLIGENCE

CVE-2026-45390

CVSS score9.1 CRITICAL
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-06-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

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).

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-22

Primary references