{"apiVersion":"1.0","identifier":"CVE-2026-77634","description":"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 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.","publishedAt":"2026-08-24T21:17:48","lastModifiedAt":"2026-08-25T20:17:06","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77634","cvssScore":8.2,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00312,"riskScore":0.84,"affectedProduct":"CakePHP","affectedVersions":"<4.5.12, <4.6.5, <5.1.8, <5.2.14, <5.3.7","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-77634","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-77634","en":"https://www.redsauce.net/en/cves/CVE-2026-77634","fr":"https://www.redsauce.net/fr/cves/CVE-2026-77634","pt":"https://www.redsauce.net/pt/cves/CVE-2026-77634","de":"https://www.redsauce.net/de/cves/CVE-2026-77634","sk":"https://www.redsauce.net/sk/cves/CVE-2026-77634","el":"https://www.redsauce.net/el/cves/CVE-2026-77634"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-77634"}}