Security researchers discovered over 260,000 leaked Laravel APP_KEYs on GitHub, with 600+ applications vulnerable to remote code execution attacks. The vulnerability stems from Laravel's decrypt() function automatically deserializing data, allowing attackers with exposed APP_KEYs to execute arbitrary code. The issue affects both older Laravel versions (CVE-2018-15133) and newer versions with specific session configurations (CVE-2024-55556). Researchers found 63% of exposures come from .env files containing additional sensitive data, and 28,000 APP_KEY/APP_URL pairs were exposed together, making attacks trivial. Proper mitigation requires immediate key rotation, system updates, and continuous secret monitoring rather than simply deleting exposed keys.

5m read timeFrom thehackernews.com
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