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CVE-2026-82728— Unbounded HTTP/1 status-line and chunk-extension buffering in Mint causes memory-exhaustion DoS

Quick assessment

Affected
elixir-mint mint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

资源分配缺乏限制或节流（Allocation of Resources Without Limits or Throttling） 漏洞存在于 Elixir 的 mint 库中。该漏洞允许远程 HTTP 服务器耗尽客户端主机上的内存，从而导致拒绝服务（DoS）。 具体而言，两个 HTTP/1 响应解析器状态会无限制地累积服务器数据。在 中， 在状态行不完整时，将未消费的数据存储在 中； 对于未终止的块扩展行执行相同操作。这两种状态都在等待一个服务器无需发送的 CRLF（回车换行），而 会被前置到后续每条套接字消息之

CVSS 8.2 · High

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
elixir-mint mint 0.1.0< 1.10.0 affected
c088e4b6430545338841ab8d294369e45d39856a< 19be5558b6a317e271c78666498dd78b151e490a affected
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I. Basic Information for CVE-2026-82728

Vulnerability Information
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Vulnerability Title
Unbounded HTTP/1 status-line and chunk-extension buffering in Mint causes memory-exhaustion DoS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
elixir-mint mint 0.1.0 ~ 1.10.0 cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*
elixir-mint mint c088e4b6430545338841ab8d294369e45d39856a ~ 19be5558b6a317e271c78666498dd78b151e490a cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82728

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III. Intelligence Information for CVE-2026-82728

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Patches & Fixes for CVE-2026-82728 (1)

Vendor Advisories for CVE-2026-82728 (2)

Other References for CVE-2026-82728 (1)

IV. Related Vulnerabilities

Same product: mint
Same vendor: elixir-mint
Same weakness: CWE-770

V. Comments for CVE-2026-82728

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