CVE-2026-59946

MediumCVSS 6.1/10Last modified Jul 10, 2026

Description

Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, a Composer package bin entry containing .. path segments can resolve outside the package install directory and cause Composer's binary installation flow to chmod an existing host file to a world-readable and world-executable mode during composer install, update, or require. This issue is fixed in versions 2.2.29 and 2.10.2.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-22 CWE-732

Affected software

Vendor	Product	Versions
composer	composer	>= 1.0, < 2.2.29; >= 2.3.0, < 2.10.2

References

Timeline

Published: Jul 8, 2026
Last modified: Jul 10, 2026
NVD status: Deferred

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