Investigate in your agent.

Turn this advisory into a focused investigation. Ask your agent to check your project’s versions, explain the evidence, and suggest a compatible fix.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

Skip to content
cve.new Create a CVE report
Check your stack
CVE-2026-119415medium6.3

CakePHP through 5.4.3 MIME Header Injection via FormDataPart Content-Type

Impact

CakePHP through 5.4.3 has a header injection vulnerability via unsanitized Content-Type and Content-ID values in FormDataPart, allowing attackers to inject MIME part headers. Attackers can add arbitrary headers or content by supplying CR/LF sequences.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

cakephp · VulnCheck

cakephp

1 range
VulnCheck version evidence

Package identity

pkg:composer/cakephp/cakephpExplore cakephp/cakephp →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 5.4.3

semver versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119415

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-93 ↗

Improper Neutralization of CRLF Sequences ('CRLF Injection')

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:cakephp:cakephp:*:*:*:*:*:*:*:*

Through (inclusive): 5.4.3

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:cakephp:cakephp:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "5.4.3"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

10 sources
github.com/cakephp/cakephp/commit/2e54c227eaa4c0e0d5edd74931710fd4f8bc38b5
patchVulnCheck
github.com/cakephp/cakephp/commit/27263ae750a3cd8464a5db076f48a731c8283df2
patchVulnCheck
github.com/cakephp/cakephp/commit/c9a91149f04e2aee7faa30ed57d40f5b91d3f79e
patchVulnCheck
github.com/cakephp/cakephp/commit/d66e016d2fd9667dd605b56e25fbb3df5365406a
patchVulnCheck
github.com/cakephp/cakephp/pull/19715
patchVulnCheck
github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Client/FormDataPart.php
technical-descriptionVulnCheck
View 4 more references
github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Mailer/Message.php
technical-descriptionVulnCheck
abraxaslabs.tech/research/cakephp-attachment-crlf
third-party-advisoryVulnCheck
github.com/cakephp/cakephp
productVulnCheck
www.vulncheck.com/advisories/cakephp-through-5.4.3-mime-header-injection-via-formdatapart-content-type
third-party-advisoryVulnCheck