CVE-2026-92103

Source
https://cve.org/CVERecord?id=CVE-2026-92103
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92103.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92103
Aliases
Published
2026-09-28T11:15:20Z
Modified
2026-09-30T03:47:27Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Mint HTTP/2 client buffers oversized frames up to 16 MiB before enforcing max_frame_size
Details

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint mint allows a malicious HTTP/2 server to make the client hold up to about 16 MiB per connection in frames it should reject, consuming client memory.

Mint.HTTP2.Frame.decode_next/2 in lib/mint/http2/frame.ex compares a frame with the client's max_frame_size (16,384 bytes by default) only once the whole declared payload has arrived. Until then it returns :more, and Mint.HTTP2 keeps every received byte in the connection buffer. A server can declare a frame length of up to 16,777,215 bytes and withhold the last byte, keeping roughly 1,024 times the advertised limit buffered for as long as the connection stays open. The server has to send every byte the client buffers, so there is no amplification, and the buffer stops at the 24-bit frame length limit.

This issue affects mint: from 0.1.0 before 1.10.2.

Database specific
{
    "cna_assigner":  "EEF",
    "cwe_ids":  [
        "CWE-770"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92103.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "0.1.0"
                },
                {
                    "fixed":  "1.10.2"
                },
                {
                    "introduced":  "596ca4304504be68939c4929e0831557097962b8"
                },
                {
                    "fixed":  "*"
                }
            ],
            "source":  "AFFECTED_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "introduced":  "0.1.0"
                },
                {
                    "fixed":  "1.10.2"
                }
            ],
            "source":  "CPE_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "introduced":  "0.1.0"
                },
                {
                    "fixed":  "1.10.2"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/elixir-mint/mint

Affected ranges

Type
GIT
Repo
https://github.com/elixir-mint/mint
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed
Database specific
Show details
{
    "source":  "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
v1.10.0
v1.10.1
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-2026-92103.json"