---
id: CVE-2026-70646
title: aiosend is a synchronous and asynchronous Crypto Pay API client
summary: >-
  aiosend is a synchronous and asynchronous Crypto Pay API client. Pror to
  version 3.0.7, `WebhookHandler.feed_update()` deserializes the entire request
  body before verifying the HMAC signature. This allows an unauthenticated
  attacker to f…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: aiosend
product: aiosend
affected:
  - aiosend < 3.0.7
patched:
  - aiosend 3.0.7
published: '2026-08-06'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70646'
references:
  - url: >-
      https://github.com/vovchic17/aiosend/commit/db20f0a742209dfac181863d398ec5112687efa4
    label: security-advisories@github.com
  - url: 'https://github.com/vovchic17/aiosend/releases/tag/v3.0.7'
    label: security-advisories@github.com
  - url: >-
      https://github.com/vovchic17/aiosend/security/advisories/GHSA-7m8f-hgjq-8gc9
    label: security-advisories@github.com
  - url: 'https://github.com/vovchic17/aiosend'
tags:
  - nvd
  - osv
  - pip
epss: 0.0035
epssPercentile: 0.28661
aliases:
  - GHSA-7m8f-hgjq-8gc9
ecosystem: pip
ingestedAt: '2026-08-06T19:13:30.489Z'
---

## Overview

aiosend is a synchronous and asynchronous Crypto Pay API client. Pror to version 3.0.7, `WebhookHandler.feed_update()` deserializes the entire request body before verifying the HMAC signature. This allows an unauthenticated attacker to force expensive parsing of arbitrary JSON payloads that will ultimately be rejected, leading to unnecessary CPU and memory consumption. Version 3.0.7 fixes the issue. Some workarounds are available. Restrict request body size at the reverse proxy or web framework, rate-limit webhook endpoints, and/or reject oversized requests before JSON parsing.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-70646)

Affected packages:

- `aiosend < 3.0.7`

Patched in:

- `aiosend 3.0.7`

Source: https://osv.dev/vulnerability/GHSA-7m8f-hgjq-8gc9