CVE-2026-5704

A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.

  • Published Apr 6, 2026
  • CVSS 5.5 medium
  • 0.4% chance of exploitation in the next 30 days (EPSS)
  • Public exploit code is available
  • A fix is available

Affected software

In the news

CVE-2026-5704 at the National Vulnerability Database