CVE-2021-23442
Prototype Pollution
This affects all versions of package @cookiex/deep. The global proto object can be polluted using the proto object.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
This affects all versions of package @cookiex/deep. The global proto object can be polluted using the proto object.
- Record
CVE-2021-23442- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:R - Updated
- 2026-11-02
EUVDEUVD-2021-2020
This affects all versions of package @cookiex/deep. The global proto object can be polluted using the proto object.
- Record
EUVD-2021-2020- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:R - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-92v9-xh2q-fq9f
Prototype Pollution in cookiex/deep
The npm @cookiex/deep package before version 0.0.7 has a prototype pollution vulnerability. The global proto object can be polluted using the proto object.
- Record
GHSA-92v9-xh2q-fq9f- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - Weakness
- CWE-915, CWE-1321
- Updated
- 2026-11-02
NVD
This affects all versions of package @cookiex/deep. The global proto object can be polluted using the proto object.
- Record
CVE-2021-23442- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSV
This affects all versions of package @cookiex/deep. The global proto object can be polluted using the proto object.
- Record
CVE-2021-23442- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-92v9-xh2q-fq9f
Prototype Pollution in cookiex/deep
The npm @cookiex/deep package before version 0.0.7 has a prototype pollution vulnerability. The global proto object can be polluted using the proto object.
- Record
GHSA-92v9-xh2q-fq9f- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - Weakness
- CWE-1321, CWE-915
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@cookiex/deepnpm | before 0.0.7 | 0.0.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-23442 is a high vulnerability (CVSS 8.6) in Cookiex-deep Project Cookiex-deep, published September 17, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.59%, the 76th percentile. Fixed in @cookiex/deep 0.0.7.