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CVE-2026-56876 is a high-severity vulnerability in the extract-zip package caused by improper validation of symlink targets during ZIP archive extraction. When extract-zip processes a malicious archive containing a symlink entry with a relative target such as '../../../../etc/passwd', it creates the symlink without verifying that the resolved target remains within the intended extraction directory. This allows archive contents to reference filesystem locations outside the destination path. Depending on how the application subsequently handles the extracted files and symlinks, the flaw can lead to arbitrary file access outside the extraction root, including read or write operations.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.