Exploit discussion active in current signal (1 latest mentions)
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NVD description
node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
Arbitrary file overwrite vulnerability in node-tar version < 7.5.3 CVE-2026-23745 https://github.com/Jvr2022/CVE-2026-23745 #bugbountytips #Cybersecurity
Post summary
An arbitrary file overwrite vulnerability (CVE-2026-23745) has been disclosed for node-tar versions below 7.5.3, with a PoC available on GitHub.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | isaacs | tar | - | node.js | - |