UBUNTU-CVE-2026-2950

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Source
https://ubuntu.com/security/CVE-2026-2950
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-2950
Upstream
Downstream
Related
Published
2026-03-31T20:16:00Z
Modified
2026-10-28T20:17:20Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. The issue is patched from 4.18.0 to 4.18.1 depending on the package: lodash, lodash-es, and lodash-amd in 4.18.1, and the standalone lodash.unset and lodash.omit packages in 4.18.0.

References

Affected packages

Ubuntu:25.10
node-lodash

Package

Name
node-lodash
Purl
pkg:deb/ubuntu/node-lodash?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.25.10.1

Affected versions

4.*
4.17.21+dfsg+~cs8.31.198.20210220-9

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.25.10.1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.25.10.1"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.25.10.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:26.10
node-lodash

Package

Name
node-lodash
Purl
pkg:deb/ubuntu/node-lodash?arch=source&distro=stonking

Affected ranges

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

Affected versions

4.*
4.17.23+dfsg-1
4.18.1+dfsg-3
4.18.1+dfsg1-1
4.18.1+dfsg1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.18.1+dfsg1-2"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.18.1+dfsg1-2"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.18.1+dfsg1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:16.04:LTS
node-lodash

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.4.1+dfsg-3ubuntu0.1~esm1

Affected versions

2.*
2.4.1+dfsg-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "2.4.1+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "2.4.1+dfsg-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:18.04:LTS
node-lodash

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.4+dfsg-1ubuntu0.1~esm1

Affected versions

4.*
4.17.4+dfsg-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.4+dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.4+dfsg-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:20.04:LTS
node-lodash

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.15+dfsg-2ubuntu0.1~esm1

Affected versions

4.*
4.17.11+dfsg-4
4.17.15+dfsg-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.15+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.15+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.17.15+dfsg-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:22.04:LTS
node-lodash

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.21+dfsg+~cs8.31.198.20210220-5ubuntu0.1~esm1

Affected versions

4.*
4.17.21+dfsg+~cs8.31.173-1
4.17.21+dfsg+~cs8.31.196.20210220-2
4.17.21+dfsg+~cs8.31.198.20210220-4
4.17.21+dfsg+~cs8.31.198.20210220-5

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-5ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-5ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-5ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:24.04:LTS
node-lodash

Package

Name
node-lodash
Purl
pkg:deb/ubuntu/node-lodash?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.24.04.1~esm1

Affected versions

4.*
4.17.21+dfsg+~cs8.31.198.20210220-9

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.24.04.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.24.04.1~esm1"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.17.21+dfsg+~cs8.31.198.20210220-9ubuntu0.24.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"
Ubuntu:Pro:26.04:LTS
node-lodash

Package

Name
node-lodash
Purl
pkg:deb/ubuntu/node-lodash?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.23+dfsg-1ubuntu0.1~esm1

Affected versions

4.*
4.17.21+dfsg+~cs8.31.198.20210220-9
4.17.23+dfsg-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libjs-lodash",
            "binary_version": "4.17.23+dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash",
            "binary_version": "4.17.23+dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "node-lodash-packages",
            "binary_version": "4.17.23+dfsg-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-2950.json"