UBUNTU-CVE-2026-123829

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Source
https://ubuntu.com/security/CVE-2026-123829
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-123829
Upstream
  • CVE-2026-123829
Published
2026-11-12T00:00:00Z
Modified
2026-11-12T23:46:18Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

A Permission Model bypass in Node.js recursive file watching discloses the names of files and directories the process is not permitted to read. On macOS and Windows, fs.watch() and fs.promises.watch() in recursive mode are backed by the native libuv watcher: FSEventWrap::Start checks kFileSystemRead only once, on the watched root, and FSEventWrap::OnEvent then forwards every filename libuv reports (relative paths at any depth) to the JavaScript callback without checking that each path is covered by the read grant. Code running under --permission with an exact read grant on a directory can therefore learn names such as sub/secret.txt even though readdir on that subdirectory is denied. The flaw exposes names and timing metadata, not file contents, and requires macOS or Windows plus files created under the watched directory by another actor. This vulnerability affects Node.js 26.x, 24.x, and 22.x.

References

Affected packages

Ubuntu:24.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

18.*
18.13.0+dfsg1-1ubuntu2
18.19.1+dfsg-2ubuntu4
18.19.1+dfsg-6ubuntu1
18.19.1+dfsg-6ubuntu2
18.19.1+dfsg-6ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode109",
            "binary_version": "18.19.1+dfsg-6ubuntu5"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "18.19.1+dfsg-6ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:26.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.19.4+dfsg-1
20.19.5+dfsg+~cs20.19.12-4
22.*
22.21.1+dfsg+~cs22.19.0-6ubuntu4
22.22.0+dfsg+~cs22.19.6-1ubuntu2
22.22.0+dfsg+~cs22.19.13-2ubuntu1
22.22.1+dfsg+~cs22.19.15-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode127",
            "binary_version": "22.22.1+dfsg+~cs22.19.15-1ubuntu1"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "22.22.1+dfsg+~cs22.19.15-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:26.10
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

22.*
22.22.1+dfsg+~cs22.19.15-1ubuntu1
24.*
24.16.0+dfsg+~cs24.13.1-2ubuntu1
24.18.0+dfsg+~cs24.13.2-1ubuntu1
24.19.0+dfsg+~cs24.13.3-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode137",
            "binary_version": "24.19.0+dfsg+~cs24.13.3-1ubuntu1"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "24.19.0+dfsg+~cs24.13.3-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:Pro:14.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.10.15~dfsg1-4
0.10.21~dfsg1-1
0.10.22~dfsg1-2
0.10.23~dfsg1-1
0.10.23~dfsg1-2
0.10.23~dfsg1-3
0.10.24~dfsg1-1
0.10.25~dfsg2-2
0.10.25~dfsg2-2ubuntu1
0.10.25~dfsg2-2ubuntu1.2
0.10.25~dfsg2-2ubuntu1.2+esm1
0.10.25~dfsg2-2ubuntu1.2+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nodejs",
            "binary_version": "0.10.25~dfsg2-2ubuntu1.2+esm2"
        },
        {
            "binary_name": "nodejs-legacy",
            "binary_version": "0.10.25~dfsg2-2ubuntu1.2+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:Pro:16.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.10.25~dfsg2-2ubuntu1
4.*
4.2.2~dfsg-1
4.2.3~dfsg-1
4.2.4~dfsg-1ubuntu1
4.2.4~dfsg-2
4.2.6~dfsg-1ubuntu1
4.2.6~dfsg-1ubuntu4
4.2.6~dfsg-1ubuntu4.1
4.2.6~dfsg-1ubuntu4.2
4.2.6~dfsg-1ubuntu4.2+esm1
4.2.6~dfsg-1ubuntu4.2+esm2
4.2.6~dfsg-1ubuntu4.2+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nodejs",
            "binary_version": "4.2.6~dfsg-1ubuntu4.2+esm3"
        },
        {
            "binary_name": "nodejs-legacy",
            "binary_version": "4.2.6~dfsg-1ubuntu4.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:Pro:18.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.11.4~dfsg-1ubuntu1
6.11.4~dfsg-1ubuntu2
6.12.0~dfsg-1ubuntu1
6.12.0~dfsg-2ubuntu1
6.12.0~dfsg-2ubuntu2
8.*
8.10.0~dfsg-2
8.10.0~dfsg-2ubuntu0.2
8.10.0~dfsg-2ubuntu0.3
8.10.0~dfsg-2ubuntu0.4
8.10.0~dfsg-2ubuntu0.4+esm1
8.10.0~dfsg-2ubuntu0.4+esm2
8.10.0~dfsg-2ubuntu0.4+esm3
8.10.0~dfsg-2ubuntu0.4+esm4
8.10.0~dfsg-2ubuntu0.4+esm5
8.10.0~dfsg-2ubuntu0.4+esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nodejs",
            "binary_version": "8.10.0~dfsg-2ubuntu0.4+esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:Pro:20.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

10.*
10.15.2~dfsg-2ubuntu1
10.17.0~dfsg-2ubuntu4
10.17.0~dfsg-2ubuntu6
10.19.0~dfsg-3ubuntu1
10.19.0~dfsg-3ubuntu1.1
10.19.0~dfsg-3ubuntu1.2
10.19.0~dfsg-3ubuntu1.3
10.19.0~dfsg-3ubuntu1.5
10.19.0~dfsg-3ubuntu1.6
10.19.0~dfsg-3ubuntu1.6+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode64",
            "binary_version": "10.19.0~dfsg-3ubuntu1.6+esm2"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "10.19.0~dfsg-3ubuntu1.6+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"
Ubuntu:Pro:22.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

12.*
12.22.5~dfsg-5ubuntu1
12.22.7~dfsg-2ubuntu1
12.22.7~dfsg-2ubuntu3
12.22.9~dfsg-1ubuntu2
12.22.9~dfsg-1ubuntu3
12.22.9~dfsg-1ubuntu3.1
12.22.9~dfsg-1ubuntu3.2
12.22.9~dfsg-1ubuntu3.3
12.22.9~dfsg-1ubuntu3.4
12.22.9~dfsg-1ubuntu3.5
12.22.9~dfsg-1ubuntu3.6
12.22.9~dfsg-1ubuntu3.6+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode72",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123829.json"