This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-59947 →
DEBIAN-CVE-2026-59947
Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a cr...
Original description
The description as published by the source.
Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a credential embedded in the username slot of a repository or package URL, such as a GitHub Personal Access Token in https://TOKEN@host/, to debug output because AuthHelper, Url::sanitize, and ProcessExecutor did not sanitize username-only URL credentials. This issue is fixed in versions 2.2.29 and 2.10.2.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
composer
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
composer
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
composer
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-1"}]}]
References
- advisory security-tracker.debian.org