Vulnerability in Cakephp
CVE-2026-119417
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.
Vulnerability class: CRLF Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/cakephp/cakephp/commit/2b9326ca3f17b2e940c6c9f50d821e9929c00f39 (patch)
- github.com/cakephp/cakephp/commit/773587406a29eedc2e0031e12683b08e112cc538 (patch)
- github.com/cakephp/cakephp/commit/3b997318539c48a423b77651c61c9f229cbf9e33 (patch)
- github.com/cakephp/cakephp/commit/e5936b286cc389b1497fd9b675a2133ba9ac557d (patch)
- github.com/cakephp/cakephp/pull/19695 (issue-tracking, patch)
- github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Ma… (technical-description)
- github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Ma… (technical-description)
- github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc (related, vendor-advisory)
- abraxaslabs.tech/research/cakephp-smtp-crlf (third-party-advisory)
- github.com/cakephp/cakephp (product)
Frequently asked questions
- What is CVE-2026-119417?
- CVE-2026-119417 is a low-severity vulnerability in Cakephp, classified under CRLF Injection. CVSS score: 3.7/10. Published 2026-10-30.
- How severe is CVE-2026-119417?
- Low severity. CVSS v3 base score is 3.7 out of 10.