CVE-2026-77634

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.

Scoring

Severity

HIGH

CVSS base score

8.2

CVSS vector

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

EPSS probability

0.31%

CWE

CWE-93

Published

2026-08-24

Last modified

2026-08-25

Affected products

• cakephp cakephp
• cakephp cakephp
• cakephp cakephp
• cakephp cakephp
• cakephp cakephp

Weakness type

• CWE-93

Related vulnerabilities

• CVE-2026-48019 — CRLF injection in Laravel's default email rule enables SMTP smuggling and spoofed-mail relay
• CVE-2026-75925 — IXON VPN Client CRLF Injection
• CVE-2026-84962 — Authenticated KMS request forgery via CRLF injection in GCP key identifier strings
• CVE-2026-84379 — HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers
• CVE-2026-84372 — Predis: Redis command injection and denial of service via CRLF smuggling in pipelined commands on aggregate connections
• CVE-2026-82854 — Nodemailer before 8.0.3 SMTP Command Injection via envelope.size
• CVE-2026-82853 — Nodemailer before 8.0.5 SMTP Command Injection via CRLF
• CVE-2026-82661 — Nodemailer CRLF Injection via List-* Header Comments

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