GHSA-2m8v-j782-fhvr

Source

https://github.com/advisories/GHSA-2m8v-j782-fhvr

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-2m8v-j782-fhvr/GHSA-2m8v-j782-fhvr.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-2m8v-j782-fhvr

Aliases

CVE-2026-69185

Downstream

CGA (9)

MINI (2)

Published

2026-08-03T19:09:44Z

Modified

2026-09-10T03:50:53Z

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

Socket.IO: Zero-attachment Memory Exhaustion

Details

Impact

A specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory.

Patches

Version range	Used by	Fixed version
`>=4.0.0 <4.2.7`	`socket.io@4.x` and `socket.io-client@4.x`	`4.2.7`
`>=3.4.0 <3.4.5`	`socket.io@2.x`	`3.4.5`
`<3.3.6`	`socket.io-client@2.x`	`3.3.6`

Workarounds

There is no known workaround except upgrading to a safe version.

For more information

If you have any questions or comments about this advisory:

Open a discussion here

Database specific

{
    "cwe_ids":  [
        "CWE-20",
        "CWE-754"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-08-03T19:09:44Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}

References

Affected packages

npm / socket.io-parser

Package

Name: socket.io-parser; View open source insights on deps.dev
Purl: pkg:npm/socket.io-parser

Affected ranges

Type: SEMVER
Events: Introduced

4.0.0

Fixed

4.2.7

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-2m8v-j782-fhvr/GHSA-2m8v-j782-fhvr.json"

npm / socket.io-parser

Package

Name: socket.io-parser; View open source insights on deps.dev
Purl: pkg:npm/socket.io-parser

Affected ranges

Type: SEMVER
Events: Introduced

3.4.0

Fixed

3.4.5

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-2m8v-j782-fhvr/GHSA-2m8v-j782-fhvr.json"

npm / socket.io-parser

Package

Name: socket.io-parser; View open source insights on deps.dev
Purl: pkg:npm/socket.io-parser

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.3.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-2m8v-j782-fhvr/GHSA-2m8v-j782-fhvr.json"