Unrestricted Upload of File with Dangerous Type The advisory has been revoked - it doesn't affect any version of package tar (opens in a new tab)

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0.43% (37^th percentile)

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Snyk IDSNYK-UBUNTU2510-TAR-15978866
published23 Apr 2026
disclosed6 Apr 2026

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Introduced: 6 Apr 2026

CVE-2026-5704 (opens in a new tab) CWE-434 (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu.

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.