DEBIAN-CVE-2026-2950

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Source
https://security-tracker.debian.org/tracker/CVE-2026-2950
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2950.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-2950
Upstream
Published
2026-03-31T20:16:26Z
Modified
2026-10-16T09:47:29Z
Severity
  • 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
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

Debian:12 / node-lodash

Package

Name
node-lodash
Purl
pkg:deb/debian/node-lodash?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1

Affected versions

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

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2950.json"

Debian:13 / node-lodash

Package

Name
node-lodash
Purl
pkg:deb/debian/node-lodash?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17.21+dfsg+~cs8.31.198.20210220-9+deb13u1

Affected versions

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

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2950.json"

Debian:14 / node-lodash

Package

Name
node-lodash
Purl
pkg:deb/debian/node-lodash?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.18.1+dfsg-1

Affected versions

4.*
4.17.21+dfsg+~cs8.31.198.20210220-9
4.17.21+dfsg+~cs8.31.198.20210220-10
4.17.23+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2950.json"