# CVE-2026-82728

## Summary

- **CVE ID:** CVE-2026-82728
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-770
- **Published:** Sep 4, 2026
- **Last Modified:** Sep 4, 2026

## Description

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.

## Affected Products

- elixir-mint — mint (0.1.0)
- elixir-mint — mint (c088e4b6430545338841ab8d294369e45d39856a)

## References

- [CNA](https://github.com/elixir-mint/mint/security/advisories/GHSA-g83f-2j6r-q6m4)
- [CNA](https://cna.erlef.org/cves/CVE-2026-82728.html)
- [CNA](https://osv.dev/vulnerability/EEF-CVE-2026-82728)
- [CNA](https://github.com/elixir-mint/mint/commit/19be5558b6a317e271c78666498dd78b151e490a)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.49%
- **EPSS Percentile:** 40.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._