HIGH
GHSA-2qh5-382h-3jpc
CakePHP: SmtpTransport vulnerable to CRLF header injection
Quick fix
GHSA-2qh5-382h-3jpc — cakephp/cakephp: upgrade to the fixed version with the command below.
composer require cakephp/cakephp:^4.5.12Details
### Impact
Custom mail headers added with `Message::setHeaders()` or `addHeaders()` do not have CRLF replaced allowing header injection if user controlled data is added to message headers without stripping CRLF bytes.
### Patches 5.3.7, 5.2.14, 5.1.9, 4.6.5, 4.5.12 contain fixes for this issue.
### Workarounds You can strip CRLF bytes from email header values before setting header values.
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist/cakephp/cakephp
Introduced in:
4.5.0Fixed in: 4.5.12Fix
composer require cakephp/cakephp:^4.5.12Packagist/cakephp/cakephp
Introduced in:
4.6.0Fixed in: 4.6.5Fix
composer require cakephp/cakephp:^4.6.5Packagist/cakephp/cakephp
Introduced in:
5.0.0Fixed in: 5.1.9Fix
composer require cakephp/cakephp:^5.1.9Packagist/cakephp/cakephp
Introduced in:
5.2.0Fixed in: 5.2.14Fix
composer require cakephp/cakephp:^5.2.14Packagist/cakephp/cakephp
Introduced in:
5.3.0Fixed in: 5.3.7Fix
composer require cakephp/cakephp:^5.3.7References
- https://github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-77634[ADVISORY]
- https://github.com/cakephp/cakephp/commit/08188962bcd99a95da1e49f62e786f2d688f1e41[WEB]
- https://github.com/cakephp/cakephp/commit/2afe42b02d8ddc5d442bca5e8bb61910a727646e[WEB]
- https://github.com/cakephp/cakephp/commit/3e09dae6cbdc983754fa3a8e6aae74da102a3ea1[WEB]
- https://github.com/cakephp/cakephp/commit/b67b622457362b075bb37e625a82af73a0b3c9c3[WEB]
- https://github.com/cakephp/cakephp[PACKAGE]