CVE-2026-40931
Complete Bypass of CVE-2026-24884 Patch via Git-Delivered Symlink Poisoning in compressing
CVSS Score
8.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 |
| Vendor | node-modules |
| Product | compressing |
| Published | Apr 21, 2026 |
Stay Ahead of the Next One
Get instant alerts for node-modules compressing
Be the first to know when new high vulnerabilities affecting node-modules compressing are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
node-modules / compressing
>=2.0.0, < 2.1.1 < 1.10.5