VULNERABILITY INTELLIGENCE

CVE-2023-27534

CVSS score8.8 HIGH
EPSS probability2.44%
CISA KEVNot currently listed
Published2023-03-30
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

Weakness classification

  • support@hackerone.com: CWE-22
  • nvd@nist.gov: CWE-22

Primary references