www.stepsecurity.io 5/23/2026, 1:03:23 AM · external

Laravel-Lang Supply Chain Attack: Every Tag Across Multiple Composer Packages Rewritten to Steal CI Secrets

Laravel-Lang Supply Chain Attack: Every Tag Across Multiple Composer Packages Rewritten to Steal CI Secrets
CyberSIXT Evidence Panel Source marked as original reporting

ON May 22, 2026, an attacker with push access to the Laravel-Lang GitHub organization compromised three popular Composer packages by rewriting every git tag in a 15-minute window. This allowed malicious payloads to be executed upon installation, targeting CI secrets. The affected packages include `laravel-lang/http-statuses`, `laravel-lang/actions`, and `laravel-lang/attributes`.

The attack leveraged Composer's autoload functionality to execute hidden PHP code that exfiltrates sensitive environment data to a typosquatted domain. All existing tags across these packages were modified, leaving no safe versions. Recovery steps include auditing affected systems, revoking access, and cleaning up compromised environments.

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