GHSA-G6XQ-892H-64W3 Composer: URL-embedded HTTP-Basic username leaks to verbose logs (GitHub PAT exposure)

Summary When Composer is run with -vvv debug verbosity, it could print a credential that was embedded directly in a repository or package URL, but not as a password, to its debug output. Composer already masked the password portion of such URLs, but the username portion was shown in clear text...

EUVD-2026-42363

Composer: URL-embedded HTTP-Basic username leaks to verbose logs GitHub PAT exposure...

Composer: URL-embedded HTTP-Basic username leaks to verbose logs (GitHub PAT exposure)

Summary When Composer is run with -vvv debug verbosity, it could print a credential that was embedded directly in a repository or package URL, but not as a password, to its debug output. Composer already masked the password portion of such URLs, but the username portion was shown in clear text...

BIT-COMPOSER-2026-45793 Composer: Github Actions issued GITHUB_TOKEN disclosure in GitHub Actions logs

Composer is a dependency Manager for the PHP language. Prior to 1.10.28, 2.2.28, and 2.9.8, Composer\IO\BaseIO::loadConfiguration validates GitHub OAuth tokens with the regex ^.A-Za-z0-9+$ and interpolates rejected tokens into an UnexpectedValueException; GitHub Actions GITHUBTOKEN values using t...

GHSA-499R-G7PC-VMP9 Composer: Arbitrary file write outside vendor via malicious transitive package name

Summary A maliciously crafted package, published on an untrusted third party repository other than Packagist.org or Private Packagist, can cause Composer to write files outside the vendor/ directory and outside your project, with attacker-controlled content, during a normal install or update...

Composer: Arbitrary file write outside vendor via malicious transitive package name

Summary A maliciously crafted package, published on an untrusted third party repository other than Packagist.org or Private Packagist, can cause Composer to write files outside the vendor/ directory and outside your project, with attacker-controlled content, during a normal install or update...

EUVD-2026-42362

Composer: Arbitrary file write outside vendor via malicious transitive package name...

Important: composer

Issue Overview: 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...

Amazon Linux 2023 : composer (ALAS2023-2026-1941)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1941 advisory. 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 an...

php-composer2-2.10.2-2.1 on GA media (moderate)

php-composer2-2.10.2-2.1 on GA media Announcement ID: openSUSE-SU-2026:11300-1 Rating: moderate Cross-References: CVE-2026-45793 CVSS scores: CVE-2026-45793 SUSE : 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N Affected Products: openSUSE Tumbleweed An update that solves one vulnerability can n...

CVE-2026-46420 setup-php: Command Injection in Repository-Derived PHP Version Resolution

setup-php is a GitHub action to set up PHP with extensions, php.ini configuration, coverage drivers, and tools. From 2.25.0 prior to 2.37.1, shivammathur/setup-php resolves the PHP version from repository-controlled files such as .php-version, composer.lock through platform-overrides.php, and...

Gitea has insufficient permission checks for Composer package source links

CVE Description Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information. Summary A critical vulnerability has been discovered in Gitea. It was already reported via...

EUVD-2026-41635

Gitea has insufficient permission checks for Composer package source links...

GHSA-8QW8-RQ86-9PC2 Gitea has insufficient permission checks for Composer package source links

CVE Description Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information. Summary A critical vulnerability has been discovered in Gitea. It was already reported via...

Security update for php-composer2

This update for php-composer2 fixes the following issues: CVE-2026-45793: Github Actions issued GITHUBTOKEN disclosure in GitHub Actions logs bsc1271504. CVE-2026-59946: path traversal in package bin field lets dependencies chmod arbitrary host files bsc1271151. CVE-2026-59947: URL-embedded...

Path Traversal

Composer is vulnerable to Path Traversal. The vulnerability is due to improper validation of bin entries containing .. path segments, which allows an attacker to modify permissions of arbitrary host files outside the package installation directory during Composer package installation or update...

Path Traversal

Composer is vulnerable to Path Traversal. The vulnerability is due to insufficient validation of package names from untrusted repositories, which allows an attacker to write arbitrary files outside the project and vendor directories during package installation or update...

Sensitive Information Disclosure

Composer is vulnerable to Sensitive Information Disclosure. The vulnerability is due to insufficient sanitization of username-only URL credentials in debug output, which allows an attacker to expose embedded credentials such as access tokens when Composer is run with verbose debugging enabled...

OPENSUSE-SU-2026:11300-1 php-composer2-2.10.2-2.1 on GA media

These are all security issues fixed in the php-composer2-2.10.2-2.1 package on the GA media of openSUSE Tumbleweed...

SUSE CVE-2026-45793

Composer is a dependency Manager for the PHP language. Prior to 1.10.28, 2.2.28, and 2.9.8, Composer\IO\BaseIO::loadConfiguration validates GitHub OAuth tokens with the regex ^.A-Za-z0-9+$ and interpolates rejected tokens into an UnexpectedValueException; GitHub Actions GITHUBTOKEN values using t...