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CVE-2026-26960 affects the Node.js tar implementation node-tar in versions 7.5.7 and earlier. When extracting an attacker-controlled archive with default options, the library can be induced to create a hardlink inside the extraction directory that actually references a file outside the intended extraction root. The issue bypasses extraction path protections by using archive link semantics rather than a direct path traversal write. As a result, archive extraction becomes a filesystem access primitive that can be used to read from or write to files outside the destination directory with the privileges of the extracting process. The issue is fixed in node-tar 7.5.8.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A file inclusion vulnerability affecting Jira Service Management Data Center.
File inclusion vulnerability in the node-tar dependency affecting Confluence Data Center.
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.