GHSA-hpwf-8g29-85qm

Source

https://github.com/advisories/GHSA-hpwf-8g29-85qm

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-hpwf-8g29-85qm/GHSA-hpwf-8g29-85qm.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-hpwf-8g29-85qm

Aliases

CVE-2026-40879

Published

2026-04-14T00:15:09Z

Modified

2026-05-05T16:07:32Z

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

Nest Affected by DoS via Recursive handleData in JsonSocket (TCP Transport)

Details

Impact

Attacker sends many small, valid JSON messages in one TCP frame → handleData() recurses once per message; buffer shrinks each call → maxBufferSize is never reached; call stack overflows instead → A ~47 KB payload is sufficient to trigger RangeError

Patches

Fixed in @nestjs/microservices@11.1.19

References

Discovered by https://github.com/hwpark6804-gif

Database specific

{
    "cwe_ids":  [
        "CWE-674",
        "CWE-770"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-14T00:15:09Z",
    "nvd_published_at":  "2026-04-21T20:17:01Z",
    "severity":  "HIGH"
}

References

Affected packages

npm / @nestjs/microservices

Package

Name: @nestjs/microservices; View open source insights on deps.dev
Purl: pkg:npm/%40nestjs/microservices

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

11.1.19

Database specific

last_known_affected_version_range

"<= 11.1.18"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-hpwf-8g29-85qm/GHSA-hpwf-8g29-85qm.json"