An attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits.
If an application allows untrusted data to be used for the multipart content_type parameter when constructing a request, an attacker may be able to manipulate the request to send something other than what the developer intended.
Patch: https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06
{
"github_reviewed": true,
"github_reviewed_at": "2026-04-01T21:20:06Z",
"severity": "LOW",
"cwe_ids": [
"CWE-113"
],
"nvd_published_at": null
}