GHSA-fx4f-mhw4-qm7j

Suggest an improvement
Source
https://github.com/advisories/GHSA-fx4f-mhw4-qm7j
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-fx4f-mhw4-qm7j/GHSA-fx4f-mhw4-qm7j.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-fx4f-mhw4-qm7j
Aliases
Published
2026-08-24T22:05:02Z
Modified
2026-08-25T02:55:59Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
vibeio-http has a DoS vulnerability in HTTP/1.x chunked encoding parser triggered by maliciously crafted chunk lengths
Details

When using the affected versions of the vibeio-http crate, an attacker could craft a malicious HTTP/1.x request with a large chunk length (between usize::MAX - 1 and usize::MAX inclusive) and send it, causing the server to crash (integer overflow panic in debug builds, split_to out of bounds panic in release builds).

This was fixed in vibeio-http 0.3.2 by erroring on the chunk length if it exceeds usize::MAX - 2 (using checked_add() instead of + operator), preventing integer overflow.

Database specific 
{
    "cwe_ids": [
        "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-24T22:05:02Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
}
References

Affected packages

crates.io / vibeio-http

Package

Name
vibeio-http
View open source insights on deps.dev
Purl
pkg:cargo/vibeio-http

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.3.2

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-fx4f-mhw4-qm7j/GHSA-fx4f-mhw4-qm7j.json"