CVE-2021-23452
Prototype Pollution
This affects all versions of package x-assign. 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 x-assign. The global proto object can be polluted using the proto object.
- Record
CVE-2021-23452- 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 - Updated
- 2026-11-02
EUVDEUVD-2021-2155
This affects all versions of package x-assign. The global proto object can be polluted using the proto object.
- Record
EUVD-2021-2155- 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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4mvj-rq4v-2fxw
Prototype Pollution in x-assign
This vulnerability affects all versions of package x-assign. The global proto object can be polluted using the proto object.
- Record
GHSA-4mvj-rq4v-2fxw- 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 x-assign. The global proto object can be polluted using the proto object.
- Record
CVE-2021-23452- 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
OSVGHSA-4mvj-rq4v-2fxw
Prototype Pollution in x-assign
This vulnerability affects all versions of package x-assign. The global proto object can be polluted using the proto object.
- Record
GHSA-4mvj-rq4v-2fxw- 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 |
|---|---|---|
x-assignnpm |
through 0.1.4 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| 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-2021-23452 is a high vulnerability (CVSS 8.6) in Binaryops X-assign, published October 20, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.55%, the 75th percentile. No source names a fixed version.