CVE-2021-23403
Prototype Pollution
All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
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
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
- Record
CVE-2021-23403- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-2452
All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
- Record
EUVD-2021-2452- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5xjx-4xcm-hpcm
Prototype Pollution in ts-nodash
ts-nodash before version 1.2.7 is vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
- Record
GHSA-5xjx-4xcm-hpcm- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-915, CWE-1321
- Updated
- 2026-11-02
NVD
All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
- Record
CVE-2021-23403- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-5xjx-4xcm-hpcm
Prototype Pollution in ts-nodash
ts-nodash before version 1.2.7 is vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.
- Record
GHSA-5xjx-4xcm-hpcm- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-1321, CWE-915
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ts-nodashnpm |
before 1.2.7 | 1.2.7 |
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-2021-23403 is a high vulnerability (CVSS 7.3) in Ts-nodash Project Ts-nodash, published July 2, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. Fixed in ts-nodash 1.2.7.