CVE catalog
CVE-2026-40931
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.
- Severity
- High · CVSS 8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.26% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | compressing | Not reported | 1.10.5 | fixed |
| Cpe | compressing | Not reported | 2.1.1 | fixed |
| Cpe | compressing | Not reported | 2.1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | compressing | cpe | Not reported | 1.10.5 | Not reported | Not reported | Not reported |
| Cpe | compressing | cpe | Not reported | 2.1.1 | Not reported | Not reported | Not reported |
| Cpe | compressing | cpe | Not reported | 2.1.1 | Not reported | NVD-CVE-2026-40931 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: