{"id":"CVE-2026-77138","title":"The extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize()","summary":"The extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, le…","severity":"none","cwe":["CWE-502"],"published":"2026-08-25","updated":"2026-09-28","sourceUpdated":"2026-09-28T23:10:00.143","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77138","references":[{"url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-014","label":"f4fb688c-4412-4426-b4b8-421ecf27b14a"}],"tags":["nvd"],"ingestedAt":"2026-09-28T23:23:00.541Z","slug":"CVE-2026-77138","body":"## Overview\n\nThe extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}