{"id":"CVE-2026-93682","title":"When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location","summary":"When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte d…","severity":"medium","cvss":5.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-125"],"vendor":"PHP Group","product":"ext-standard","affected":["ext-standard >= 8.2.* < 8.2.34","ext-standard >= 8.3.* < 8.3.35","ext-standard >= 8.4.* < 8.4.26","ext-standard >= 8.5.* < 8.5.11"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T21:17:25.047","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93682","references":[{"url":"https://github.com/php/php-src/security/advisories/GHSA-7875-c8px-7q5f","label":"security@php.net"},{"url":"https://github.com/php/php-src/security/advisories/GHSA-7875-c8px-7q5f","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-25T20:37:51.434446Z"},"ingestedAt":"2026-09-25T20:17:49.425Z","slug":"CVE-2026-93682","body":"## Overview\n\nWhen the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte decides which redirect target is built, so a malicious server controls whether the client is sent to the host root or to the current directory.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":31.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":211184,"id":"CVE-2026-93682","ts":1790371216301,"field":"exploit_available","old":"false","new":"true"}]}