3.7
LowCVSS 3.1 · from VulnCheck
CVE-2026-119417
CakePHP through 5.4.3 Email Header Injection via Bare CR/LF in SmtpTransport and MailTransport
cakephp · CWE-93 · CWE-93Affectedcakephp
FixA patch is linked in the references.
PublishedOct 30, 11:30 · VulnCheck
ScoredOct 30 · 3.7 · VulnCheck
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:08 UTC
What we know
No known exploitation. CISA KEV, checked 22:08 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
Description
CakePHP 4.5.12, 4.6.5, 5.1.8 through 5.1.10, 5.2.14 through 5.2.15, 5.3.7, and 5.4.0 through 5.4.3 contain an email header injection vulnerability because SmtpTransport and MailTransport strip only CRLF pairs from header values, an incomplete fix for CVE-2026-77634. Attackers controlling custom headers set via Message::setHeaders() or Message::addHeaders() can insert a bare CR or LF to inject headers like Bcc, redirecting or altering outgoing mail.
From VulnCheck
Affected and fixed versions
ProductAffectedFixed incakephp4.5.12 – 4.5.12–cakephp4.6.5 – 4.6.5–cakephp5.1.8 – 5.1.10–cakephp5.2.14 – 5.2.15–cakephp5.3.7 – 5.3.7–cakephp5.4.0 – 5.4.3–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known