CVE-2019-10794
component-flatten vulnerable to Prototype Pollution
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a proto payload.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a proto payload.
- Record
CVE-2019-10794- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-74
- Updated
- 2026-11-02
CVE List No score
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a proto payload.
- Record
CVE-2019-10794- Updated
- 2026-11-02
EUVDEUVD-2022-3906 No score
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a proto payload.
- Record
EUVD-2022-3906- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g6r3-hhg9-qf58
component-flatten vulnerable to Prototype Pollution
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
- Record
GHSA-g6r3-hhg9-qf58- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-02
OSVGHSA-g6r3-hhg9-qf58
component-flatten vulnerable to Prototype Pollution
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
- Record
GHSA-g6r3-hhg9-qf58- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
component-flattennpm |
through 1.0.1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-10794 is a medium vulnerability (CVSS 6.3) in Component-flatten Project Component-flatten, published February 18, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. No source names a fixed version.