GHSA-4w2j-m93h-cj5j

Suggest an improvement
Source
https://github.com/advisories/GHSA-4w2j-m93h-cj5j
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-4w2j-m93h-cj5j/GHSA-4w2j-m93h-cj5j.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-4w2j-m93h-cj5j
Aliases
Downstream
CGA (32)
MINI (10)
Published
2026-07-24T14:07:54Z
Modified
2026-09-10T03:51:10Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Quinn: Remote memory exhaustion in quinn-proto from unbounded out-of-order stream reassembly
Details

Summary

The Assembler component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order (through an AsyncRead impl for example) will be sensitive to peers that send fragments while leaving out early parts of the stream, and in particular, fragments with many gaps (because these cannot be defragmented). In such a scenario, the receiving connection suffers from high buffer overhead, enabling memory exhaustion.

Database specific 
{
    "cwe_ids":  [
        "CWE-770"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-24T14:07:54Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}
References

Affected packages

crates.io / quinn-proto

Package

Name
quinn-proto
View open source insights on deps.dev
Purl
pkg:cargo/quinn-proto

Affected ranges

Type
SEMVER
Events
Introduced
0.1.0
Fixed
0.11.15

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-4w2j-m93h-cj5j/GHSA-4w2j-m93h-cj5j.json"