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CVE-2026-5704 is a GNU tar archive-processing flaw that permits hidden-file injection through a crafted archive. An attacker can cause extraction to create hidden files with fully attacker-controlled contents in a manner that bypasses pre-extraction archive inspection mechanisms. The issue is distinct from the path-traversal and hardlink-target flaws addressed in related tar advisories.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
34 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in tar allows a crafted archive to inject hidden files with attacker-controlled content, bypassing pre-extraction inspection and potentially introducing malicious files without detection. The advisory assigns a CVSS v3 base score of 5.5, with local attack vector and required user interaction, and reports that exploits are available. Updating to version 1.35+dfsg-3.1+e4 or later addresses the vulnerability.
A tar vulnerability allowing hidden-file injection through crafted archives, with a high-integrity-impact local attack vector requiring user interaction.
A vulnerability addressed by Alma Linux advisory ALSA-2026:70390. It has a CVSS v3 vector of CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N, indicating local attack vector, required user interaction, and high integrity impact.
A vulnerability addressed by the Oracle Linux ELSA-2026-70390 advisory. The advisory identifies it as the CVSS score source and states that exploits are available. The supplied CVSS v3 vector indicates local attack vector, no privileges required, user interaction required, and high integrity impact.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.