Is CVE-2026-82728 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82728 being exploited in the wild.

How severe is CVE-2026-82728?

Informational severity, with a CVSS score of 7.5, published 4 September 2026.

Which products and versions are affected?

Elixir-Mint Mint 0.1.0 before 1.10.0.

Is there a fix for CVE-2026-82728?

A patch was published on 2026-09-04: Fix available in version 1.10.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-82728 attacked?

It is attacked over the network.

Am I affected by CVE-2026-82728?

Check whether you run Elixir-Mint Mint at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-82728: Elixir Mint HTTP/1 parser denial of service via unbounded buffer

CVE-2026-82728 · Severity: info · CVSS 7.5 · Published 2026-09-04

Elixir Mint is an HTTP client library used to make web requests from Elixir applications. A malicious HTTP server can send crafted responses that cause the client to indefinitely accumulate data in memory without any size limit, eventually exhausting available memory and crashing the application. An attacker can exploit this by hosting a malicious server or redirecting the application to one they control.

Technologies: Elixir-Mint Mint. Vendors: Elixir-Mint.

Quick answers

Is CVE-2026-82728 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82728 being exploited in the wild.
How severe is CVE-2026-82728?: Informational severity, with a CVSS score of 7.5, published 4 September 2026.
Which products and versions are affected?: Elixir-Mint Mint 0.1.0 before 1.10.0.
Is there a fix for CVE-2026-82728?: A patch was published on 2026-09-04: Fix available in version 1.10.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-82728 attacked?: It is attacked over the network.
Am I affected by CVE-2026-82728?: Check whether you run Elixir-Mint Mint at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an Allocation of Resources Without Limits or Throttling (CWE-770) in the HTTP/1 response parser. Two code paths in lib/mint/http1.ex accumulate unconsumed server data in conn.buffer without enforcing limits: decode_status_line/4 when a status line is incomplete (waiting for CRLF), and decode_body/5 when a chunk-extension line is unterminated. The :max_header_list_size budget is only applied to decode_headers/5 and decode_trailer_headers/4, leaving these two states unprotected. A remote attacker controlling an HTTP server (or reached via redirect) can stream bytes indefinitely, causing memory exhaustion and denial of service. The chunk-extension variant is reachable after a valid status line and complete headers, so intermediaries inspecting only headers will not detect the attack.

Affected products

Elixir Mint Mint 0.1.0 before 1.10.0

Timeline

2026-09-04: disclosed
2026-09-04: patched: Fix available in version 1.10.0

References

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