---
schema_version: '1.0'
id: security-20260711-100e97
url: https://osv.dev/vulnerability/GHSA-2vrm-gr82-f7m5
url_hash: 100e97aaa664dda8416b7363c683e162bd4f9a450a5896703e006c631a536c73
canonical_url: https://osv.dev/vulnerability/GHSA-2vrm-gr82-f7m5
source: osv:ghsa
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2026-34514
- GHSA-2vrm-gr82-f7m5
- severity:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
- aiohttp
- PyPI
lang: en
published_at: '2026-04-01T21:20:06Z'
fetched_at: '2026-07-11T06:37:17Z'
updated_at: '2026-07-11T06:37:45Z'
status: published
content_hash: 407c472db2b89bc4f40c2ae4605fc8523a142688d397a39d0fb78dcb6cbf6c7f
license_note: full
summary: AIOHTTP has CRLF injection through multipart part content type header construction
summary_source: rss
summary_en: AIOHTTP has CRLF injection through multipart part content type header
  construction
entities:
- name: HashTag
  type: concept
key_facts: []
related: []
related_auto:
- name: SustainableQuantumComputing
  type: concept
  weight: 3.0
title: 'CVE-2026-34514: AIOHTTP has CRLF injection through multipart part content
  type header construction'
---

# CVE-2026-34514: AIOHTTP has CRLF injection through multipart part content type header construction

## TL;DR
AIOHTTP has CRLF injection through multipart part content type header construction

## Key Points
- cve / CVE-2026-34514 / GHSA-2vrm-gr82-f7m5 / severity:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U / aiohttp / PyPI

## Details
**Severity:** CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
**Advisory:** GHSA-2vrm-gr82-f7m5 (CVE-2026-34514)

**Affected (your watchlist):**
- `PyPI:aiohttp` 3.13.3 → fixed in 3.13.4 [docker/docker-strands]

**Details:**
### Summary

An attacker who controls the `content_type` parameter in aiohttp could use this to inject extra headers or similar exploits.

### Impact

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

**References:**
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2vrm-gr82-f7m5
- https://nvd.nist.gov/vuln/detail/CVE-2026-34514
- https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06
- https://github.com/aio-libs/aiohttp
- https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4

_Data: OSV.dev (upstream: ghsa) — https://osv.dev/vulnerability/GHSA-2vrm-gr82-f7m5_

## Source
元記事: [CVE-2026-34514: AIOHTTP has CRLF injection through multipart part content type header construction](https://osv.dev/vulnerability/GHSA-2vrm-gr82-f7m5) — published 2026-04-01T21:20:06Z