GHSA-h9q6-hc68-35rp

Source

https://github.com/advisories/GHSA-h9q6-hc68-35rp

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-h9q6-hc68-35rp/GHSA-h9q6-hc68-35rp.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-h9q6-hc68-35rp

Aliases

Downstream

CGA (2)

Published

2026-03-18T12:59:54Z

Modified

2026-07-17T21:11:48Z

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

Denial of service in github.com/shamaton/msgpack

Details

The msgpack decoder fails to properly validate the input buffer length when processing truncated fixext data (format codes 0xd4-0xd8). This can lead to an out-of-bounds read and a runtime panic, allowing a denial of service attack.

Database specific

{
    "cwe_ids":  [
        "CWE-125"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-18T12:59:54Z",
    "nvd_published_at":  "2026-03-26T20:16:12Z",
    "severity":  "HIGH"
}

References

Affected packages

Go / github.com/shamaton/msgpack/v2

Package

Name: github.com/shamaton/msgpack/v2; View open source insights on deps.dev
Purl: pkg:golang/github.com/shamaton/msgpack/v2

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

2.4.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-h9q6-hc68-35rp/GHSA-h9q6-hc68-35rp.json"

Go / github.com/shamaton/msgpack/v3

Package

Name: github.com/shamaton/msgpack/v3; View open source insights on deps.dev
Purl: pkg:golang/github.com/shamaton/msgpack/v3

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

3.1.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-h9q6-hc68-35rp/GHSA-h9q6-hc68-35rp.json"