---
id: CVE-2026-82728
title: >-
  Allocation of Resources Without Limits or Throttling vulnerability in
  elixir-mint mint allows a remote HTTP server to exhaust memory on the client
  host and cause a denial of service.


  Two HTTP/1 response-parser states accumulate server d…
summary: >-
  Allocation of Resources Without Limits or Throttling vulnerability in
  elixir-mint mint allows a remote HTTP server to exhaust memory on the client
  host and cause a denial of service.


  Two HTTP/1 response-parser states accumulate server d…
severity: none
cwe:
  - CWE-770
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T14:16:14.947'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82728'
references:
  - url: 'https://cna.erlef.org/cves/CVE-2026-82728.html'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/elixir-mint/mint/commit/19be5558b6a317e271c78666498dd78b151e490a
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/elixir-mint/mint/security/advisories/GHSA-g83f-2j6r-q6m4
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: 'https://osv.dev/vulnerability/EEF-CVE-2026-82728'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/elixir-mint/mint/security/advisories/GHSA-g83f-2j6r-q6m4
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00524
epssPercentile: 0.42002
ingestedAt: '2026-09-08T15:33:26.961Z'
---

## Overview

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint mint allows a remote HTTP server to exhaust memory on the client host and cause a denial of service.

Two HTTP/1 response-parser states accumulate server data without any cap. In lib/mint/http1.ex, decode_status_line/4 stores the unconsumed data in conn.buffer when the status line is incomplete, and decode_body/5 does the same for an unterminated chunk-extension line. Both wait for a CRLF the server never has to send, and conn.buffer is prepended to every subsequent socket message. The :max_header_list_size budget is wired only into decode_headers/5 and decode_trailer_headers/4, so neither of these states is covered by it. A malicious server, or one reached through an attacker-controlled redirect or a fetched URL, streams bytes indefinitely until the BEAM node is killed by the operating system out-of-memory handler. The chunk-extension variant is reached after a valid status line and a complete, valid header section, so an intermediary inspecting only headers sees an ordinary 200 response.

This issue affects mint: from 0.1.0 before 1.10.0.

## Remediation

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