CVE-2026-40931

HIGH

8.4

Description

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.

Details CVE

Score CVSS v3.18.4

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/21/2026

Derniere modification4/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

node-modules:compressing

Faiblesses (CWE)

CWE-59

References

https://github.com/node-modules/compressing/security/advisories/GHSA-4c3q-x735-j3r5(security-advisories@github.com)

https://github.com/node-modules/compressing/security/advisories/GHSA-4c3q-x735-j3r5(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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