CVE-2026-40931
| Summary |
Compressing is a compressing and uncompressing lib for node. Prior to 2.1.1 and 1.10.5, the patch for CVE-2026-24884 relies on a purely logical string validation within the isPathWithinParent utility. This check verifies if a resolved path string starts with the destination directory string but fails to account for the actual filesystem state. By exploiting this "Logical vs. Physical" divergence, an attacker can bypass the security check using a Directory Poisoning technique (pre-existing symbolic links). This vulnerability is fixed in 2.1.1 and 1.10.5.
|
| Publication Date |
April 22, 2026, 7:16 a.m. |
| Registration Date |
April 25, 2026, 4:04 a.m. |
| Last Update |
April 24, 2026, 12:49 a.m. |
|
CVSS3.1 : HIGH
|
| スコア |
7.8
|
| Vector |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
低 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
高 |
| 完全性への影響(I) |
高 |
| 可用性への影響(A) |
高 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:node-modules:compressing:*:*:*:*:*:node.js:*:* |
|
|
|
1.10.5 |
| cpe:2.3:a:node-modules:compressing:*:*:*:*:*:node.js:*:* |
2.0.0 |
|
|
2.1.1 |
Related information, measures and tools
Common Vulnerabilities List