CVE-2026-82728

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-82728
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82728.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82728
Aliases
Published
2026-09-04T14:31:30Z
Modified
2026-09-10T03:30:41Z
Severity
  • 8.2 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Unbounded HTTP/1 status-line and chunk-extension buffering in Mint causes memory-exhaustion DoS
Details

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.

Database specific 
{
    "cna_assigner": "EEF",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82728.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "c088e4b6430545338841ab8d294369e45d39856a"
                },
                {
                    "fixed": "19be5558b6a317e271c78666498dd78b151e490a"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/elixir-mint/mint

Affected ranges

Type
GIT
Repo
https://github.com/elixir-mint/mint
Events
Introduced
47889857fb36f07606ad9c2e52080d202d419058
Fixed
75c8be1fada9983d6972418d162d55b6e62d507e
Fixed
19be5558b6a317e271c78666498dd78b151e490a
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.1.0"
        },
        {
            "fixed": "1.10.0"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.2.1
v0.4.0
v0.5.0
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.2.1
v1.3.0
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.1
v1.5.2
v1.6.0
v1.6.1
v1.6.2
v1.7.0
v1.7.1
v1.8.0
v1.9.0
v1.9.1
v1.9.2
v1.9.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82728.json"