CVE-2026-26960
Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction
7.1
HIGH
CVSS 3.1
EPSS 0.29%
描述
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, enabling arbitrary file read and write as the extracting user. Severity is high because the primitive bypasses path protections and turns archive extraction into a direct filesystem access primitive. This issue has been fixed in version 7.5.8.
如何修補 CVE-2026-26960
要修補 CVE-2026-26960,請將受影響套件升級到下列已修補版本。
- —升級至 6.0.5+ds1+~cs11.3.9-1+deb11u3 或更新版本
- —升級至 7.5.8 或更新版本
CVE-2026-26960 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 6.0.5+ds1+~cs11.3.9-1+deb11u3
- from 0, < 7.5.8
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |