CVE-2026-119415
CakePHP through 5.4.3 MIME Header Injection via FormDataPart Content-Type
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
CakePHP through 5.4.3 contains a header injection vulnerability in FormDataPart that allows attackers to inject MIME part headers via unsanitized Content-Type and Content-ID values. Attackers can supply CR/LF sequences in attachment MIME types or Content-IDs passed to Message::setAttachments() or HTTP client multipart data to add arbitrary headers or content.
| CWE | CWE-93 |
| Vendor | cakephp |
| Product | cakephp |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
cakephp / cakephp
0 โค 5.4.3
References
github.com: https://github.com/cakephp/cakephp/commit/2e54c227eaa4c0e0d5edd74931710fd4f8bc38b5 github.com: https://github.com/cakephp/cakephp/commit/27263ae750a3cd8464a5db076f48a731c8283df2 github.com: https://github.com/cakephp/cakephp/commit/c9a91149f04e2aee7faa30ed57d40f5b91d3f79e github.com: https://github.com/cakephp/cakephp/commit/d66e016d2fd9667dd605b56e25fbb3df5365406a github.com: https://github.com/cakephp/cakephp/pull/19715 github.com: https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Client/FormDataPart.php#L200 github.com: https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Mailer/Message.php#L1181 abraxaslabs.tech: https://abraxaslabs.tech/research/cakephp-attachment-crlf github.com: https://github.com/cakephp/cakephp vulncheck.com: https://www.vulncheck.com/advisories/cakephp-through-5.4.3-mime-header-injection-via-formdatapart-content-type
Credits
Abraxas Labs Mark Story