CVE-2026-40879

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Source
https://cve.org/CVERecord?id=CVE-2026-40879
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40879.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40879
Aliases
Published
2026-04-21T19:14:17.894Z
Modified
2026-08-12T03:51:08.602643892Z
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: DoS via Recursive handleData in JsonSocket (TCP Transport)
Details

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.19, when an attacker sends many small, valid JSON messages in one TCP frame, handleData() recurses once per message; the buffer shrinks each call. maxBufferSize is never reached; call stack overflows instead. A ~47 KB payload is sufficient to trigger RangeError. This vulnerability is fixed in 11.1.19.

Database specific 
{
    "cwe_ids": [
        "CWE-674"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40879.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/nestjs/nest

Affected ranges

Type
GIT
Repo
https://github.com/nestjs/nest
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
67309956821c0626c050fe6725c90645d2577e3d
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:nestjs:nest:*:*:*:*:*:node.js:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "11.1.19"
        }
    ]
}

Affected versions

6.*
6.3.1
v10.*
v10.0.0
v10.0.1
v10.0.2
v10.0.3
v10.0.4
v10.0.5
v10.1.0
v10.1.1
v10.1.2
v10.1.3
v10.2.0
v10.2.1
v10.2.10
v10.2.2
v10.2.3
v10.2.4
v10.2.5
v10.2.6
v10.2.7
v10.2.8
v10.2.9
v10.3.0
v10.3.1
v10.3.10
v10.3.2
v10.3.3
v10.3.4
v10.3.5
v10.3.6
v10.3.7
v10.3.8
v10.3.9
v10.4.0
v10.4.1
v10.4.10
v10.4.11
v10.4.12
v10.4.13
v10.4.14
v10.4.15
v10.4.2
v10.4.3
v10.4.4
v10.4.5
v10.4.6
v10.4.7
v10.4.8
v10.4.9
v11.*
v11.0.0
v11.0.1
v11.0.10
v11.0.11
v11.0.12
v11.0.13
v11.0.14
v11.0.15
v11.0.16
v11.0.17
v11.0.18
v11.0.19
v11.0.2
v11.0.20
v11.0.21
v11.0.3
v11.0.4
v11.0.5
v11.0.6
v11.0.7
v11.0.8
v11.0.9
v11.1.0
v11.1.1
v11.1.10
v11.1.11
v11.1.12
v11.1.13
v11.1.14
v11.1.15
v11.1.16
v11.1.17
v11.1.18
v11.1.2
v11.1.3
v11.1.4
v11.1.5
v11.1.6
v11.1.7
v11.1.8
v11.1.9
v4.*
v4.4.0
v4.4.1
v4.4.2
v4.5.0
v4.5.1
v4.5.10
v4.5.11
v4.5.2
v4.5.3
v4.5.4
v4.5.5
v4.5.6
v4.5.8
v4.5.9
v4.6.1
v4.6.2
v4.6.3
v4.6.4
v4.6.5
v4.6.6
v5.*
v5.0.0
v5.0.0-beta.3
v5.0.0-beta.4
v5.0.0-beta.6
v5.0.0-beta.7
v5.0.0-beta.8
v5.0.0-rc.1
v5.0.0-rc.2
v5.0.0-rc.3
v5.0.0-rc.4
v5.0.1
v5.1.0
v5.2.1
v5.2.2
v5.3.1
v5.3.10
v5.3.11
v5.3.12
v5.3.13
v5.3.14
v5.3.15
v5.3.2
v5.3.3
v5.3.4
v5.3.5
v5.3.6
v5.3.7
v5.3.7-postinstall-next
v5.3.8
v5.3.9
v5.4.0
v5.4.1
v5.5.0
v5.6.0
v5.6.1
v5.6.2
v5.7.1
v5.7.2
v5.7.3
v5.7.4
v6.*
v6.0.0
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.1.0
v6.1.1
v6.10.0
v6.10.1
v6.10.10
v6.10.11
v6.10.12
v6.10.13
v6.10.14
v6.10.2
v6.10.3
v6.10.4
v6.10.5
v6.10.6
v6.10.7
v6.10.8
v6.10.9
v6.11.0
v6.11.1
v6.11.10
v6.11.11
v6.11.2
v6.11.3
v6.11.4
v6.11.5
v6.11.6
v6.11.7
v6.11.8
v6.11.9
v6.2.0
v6.2.1
v6.2.2
v6.2.3
v6.2.4
v6.3.0
v6.3.1
v6.3.2
v6.4.0
v6.4.1
v6.5.0
v6.5.1
v6.5.2
v6.5.3
v6.6.0
v6.6.1
v6.6.2
v6.6.3
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.7.0
v6.7.1
v6.7.2
v6.8.0
v6.8.1
v6.8.2
v6.8.3
v6.8.4
v6.8.5
v6.9.0
v7.*
v7.0.0
v7.0.1
v7.0.10
v7.0.11
v7.0.12
v7.0.13
v7.0.2
v7.0.3
v7.0.4
v7.0.5
v7.0.6
v7.0.7
v7.0.8
v7.0.9
v7.1.0
v7.1.1
v7.1.2
v7.1.3
v7.2.0
v7.3.0
v7.3.1
v7.3.2
v7.4.0
v7.4.1
v7.4.2
v7.4.3
v7.4.4
v7.5.0
v7.5.1
v7.5.2
v7.5.3
v7.5.4
v7.5.5
v7.6.0
v7.6.1
v7.6.10
v7.6.11
v7.6.12
v7.6.13
v7.6.14
v7.6.15
v7.6.16
v7.6.17
v7.6.18
v7.6.2
v7.6.3
v7.6.4
v7.6.5
v7.6.6
v7.6.7
v7.6.8
v7.6.9
v8.*
v8.0.0
v8.0.1
v8.0.10
v8.0.11
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9
v8.1.0
v8.1.1
v8.1.2
v8.2.0
v8.2.1
v8.2.2
v8.2.3
v8.2.4
v8.2.5
v8.2.6
v8.3.0
v8.3.1
v8.4.0
v8.4.1
v8.4.2
v8.4.3
v8.4.4
v8.4.5
v8.4.6
v8.4.7
v9.*
v9.0.0
v9.0.1
v9.0.10
v9.0.11
v9.0.2
v9.0.3
v9.0.4
v9.0.5
v9.0.6
v9.0.7
v9.0.8
v9.0.9
v9.1.0
v9.1.1
v9.1.2
v9.1.3
v9.1.4
v9.1.5
v9.1.6
v9.2.0
v9.2.1
v9.3.0
v9.3.1
v9.3.10
v9.3.11
v9.3.12
v9.3.2
v9.3.3
v9.3.4
v9.3.5
v9.3.6
v9.3.7
v9.3.8
v9.3.9
v9.4.0
v9.4.1
v9.4.2
v9.4.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40879.json"