node-tar has Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in Extraction

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-26960 · CVE overview and exploitation status

EUVD-2026-8399

GHSA-83g3-92jg-28cx

cve-program · CVE-2026-26960

• https://github.com/isaacs/node-tar/security/advisories/GHSA-83g3-92jg-28cx
• https://github.com/isaacs/node-tar/commit/2cb1120bcefe28d7ecc719b41441ade59c52e384
• https://github.com/isaacs/node-tar/commit/d18e4e1f846f4ddddc153b0f536a19c050e7499f

euvd · EUVD-2026-8399

• https://github.com/isaacs/node-tar/security/advisories/GHSA-83g3-92jg-28cx
• https://github.com/isaacs/node-tar/commit/2cb1120bcefe28d7ecc719b41441ade59c52e384
• https://github.com/isaacs/node-tar/commit/d18e4e1f846f4ddddc153b0f536a19c050e7499f

nvd · CVE-2026-26960

• https://github.com/isaacs/node-tar/commit/2cb1120bcefe28d7ecc719b41441ade59c52e384
• https://github.com/isaacs/node-tar/commit/d18e4e1f846f4ddddc153b0f536a19c050e7499f
• https://github.com/isaacs/node-tar/security/advisories/GHSA-83g3-92jg-28cx

osv · GHSA-83g3-92jg-28cx

• https://github.com/isaacs/node-tar/security/advisories/GHSA-83g3-92jg-28cx
• https://nvd.nist.gov/vuln/detail/CVE-2026-26960
• https://github.com/isaacs/node-tar/commit/2cb1120bcefe28d7ecc719b41441ade59c52e384
• https://github.com/isaacs/node-tar/commit/d18e4e1f846f4ddddc153b0f536a19c050e7499f
• https://github.com/isaacs/node-tar

• node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, ena… · Advisory content revised · 15 Nov 2026