Security fix · CVE-2026-119417
CakePHP: SmtpTransport vulnerable to CRLF header injection
Published Sep 8, 2026 · catalog updated Oct 31, 2026 · CakePHP: SmtpTransport vulnerable to
Last checked Oct 31, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-119417. EPSS is 0.45%. Act only if a listed version of CakePHP: SmtpTransport vulnerable to is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (CakePHP: SmtpTransport vulnerable to).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.45%
- Remediation
- Advisory link
- Affected products
- Packagist cakephp/cakephp
### Impact Custom mail headers added with or 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 you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Packagist cakephp/cakephp4.5.0 → 4.5.12
- Packagist cakephp/cakephp4.6.0 → 4.6.5
- Packagist cakephp/cakephp5.0.0 → 5.1.9
- Packagist cakephp/cakephp5.2.0 → 5.2.14
- Packagist cakephp/cakephp5.3.0 → 5.3.7
How to fix CVE-2026-119417
Upgrade
CVE-2026-119417 lists a fix boundary at 4.5.12. Compare the installed build with that boundary before you change production.
Version check
Seen in 4.5.0 → 4.5.12 · 4 other packages on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-119417. EPSS is 0.45%. Act only if a listed version of CakePHP: SmtpTransport vulnerable to is installed.
Which versions are affected?
Compare what you have installed with 4.5.0 → 4.5.12, 4.6.0 → 4.6.5, 5.0.0 → 5.1.9, 5.2.0 → 5.2.14, 5.3.0 → 5.3.7. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-93. EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Sep 8, 2026 · GitHub Advisory Database
Detected
### Impact Custom mail headers added with or 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.
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 4.5.12; cakephp/cakephp fixed in 4.6.5; cakephp/cakephp fixed in 5.1.9; cakephp/cakephp fixed in 5.2.14
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 4.5.12
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 4.6.5
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 5.1.9
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 5.2.14
Oct 31, 2026 · GitHub Advisory Database
Fix available
cakephp/cakephp fixed in 5.3.7
Oct 31, 2026 · GitHub Advisory Database
Updated
### Impact Custom mail headers added with or 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.
Sources
- CVE.orgVulnerability recordCVE-2026-119417
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-119417
30-day exploitation probability 0.45%
first.org - GitHub Advisory DatabasePackage advisoryGHSA-2qh5-382h-3jpc
GitHub Advisory Database record mirrored by OSV.
github.com - OpenSSF OSV / OSV ScannerPackage advisoryGHSA-2qh5-382h-3jpc
CakePHP: SmtpTransport vulnerable to CRLF header injection
osv.dev
References
Freshness
Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 31, 2026
- CVE.orgOct 31, 2026
- GitHub Advisory DatabaseOct 31, 2026
- OpenSSF OSV / OSV ScannerOct 31, 2026