CVE-2026-77634
High
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.
SeverityHigh
CVSS8.2
Exploit probability—
ProductCakephp/cakephp
PublishedAug 24, 2026
First seenAug 24, 2026
Weakness typeCWE-93CWE-93
How to fix
Update
- cakephp/cakephp4.5.12, 4.6.5, 5.1.9, 5.2.14, 5.3.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cakephp/cakephpPackagist | 4.5.0 ≤ v < 4.5.12, 4.6.0 ≤ v < 4.6.5, 5.0.0 ≤ v < 5.1.9, 5.2.0 ≤ v < 5.2.14, 5.3.0 ≤ v < 5.3.7 | 4.5.12, 4.6.5, 5.1.9, 5.2.14, 5.3.7 |
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