{"id":"CVE-2026-77634","title":"CakePHP is a rapid development framework for PHP","summary":"CakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders() or Message::addHeaders() do not have CRLF…","severity":"high","cwe":["CWE-93"],"vendor":"cakephp","product":"cakephp/cakephp","affected":["cakephp/cakephp >= 4.5.0, < 4.5.12","cakephp/cakephp >= 4.6.0, < 4.6.5","cakephp/cakephp >= 5.0.0, < 5.1.8","cakephp/cakephp >= 5.2.0, < 5.2.14","cakephp/cakephp >= 5.3.0, < 5.3.7"],"patched":["cakephp/cakephp 4.5.12","cakephp/cakephp 4.6.5","cakephp/cakephp 5.1.9","cakephp/cakephp 5.2.14","cakephp/cakephp 5.3.7"],"published":"2026-08-24","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:06:39.057","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77634","references":[{"url":"https://github.com/cakephp/cakephp/commit/08188962bcd99a95da1e49f62e786f2d688f1e41","label":"security-advisories@github.com"},{"url":"https://github.com/cakephp/cakephp/commit/2afe42b02d8ddc5d442bca5e8bb61910a727646e","label":"security-advisories@github.com"},{"url":"https://github.com/cakephp/cakephp/commit/3e09dae6cbdc983754fa3a8e6aae74da102a3ea1","label":"security-advisories@github.com"},{"url":"https://github.com/cakephp/cakephp/commit/b67b622457362b075bb37e625a82af73a0b3c9c3","label":"security-advisories@github.com"},{"url":"https://github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77634"},{"url":"https://github.com/advisories/GHSA-2qh5-382h-3jpc"}],"tags":["nvd","ghsa","composer"],"epss":0.00312,"epssPercentile":0.24279,"aliases":["GHSA-2qh5-382h-3jpc"],"ecosystem":"composer","ingestedAt":"2026-09-08T21:11:12.321Z","slug":"CVE-2026-77634","body":"## Overview\n\nCakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders() or Message::addHeaders() do not have CRLF bytes removed, allowing header injection when user-controlled data is used in message headers. This issue is fixed in versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77634)\n\nAffected packages:\n\n- `cakephp/cakephp >= 4.5.0, < 4.5.12`\n- `cakephp/cakephp >= 4.6.0, < 4.6.5`\n- `cakephp/cakephp >= 5.0.0, < 5.1.8`\n- `cakephp/cakephp >= 5.2.0, < 5.2.14`\n- `cakephp/cakephp >= 5.3.0, < 5.3.7`\n\nPatched in:\n\n- `cakephp/cakephp 4.5.12`\n- `cakephp/cakephp 4.6.5`\n- `cakephp/cakephp 5.1.9`\n- `cakephp/cakephp 5.2.14`\n- `cakephp/cakephp 5.3.7`\n\nSource: https://github.com/advisories/GHSA-2qh5-382h-3jpc","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}