CVE-2026-46509
deepobj: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain proto/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
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
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
deepobj: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain proto/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
- Record
CVE-2026-46509- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
EUVDEUVD-2026-32976
deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain proto/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
- Record
EUVD-2026-32976- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x7q7-fchv-8h2j
@ranfdev/deepobj has a Prototype Pollution vulnerability
Impact
Prototype pollution is possible when property paths contain __proto__/constructor/prototype. The property path must not be exposed as user input.
- Record
GHSA-x7q7-fchv-8h2j- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain proto/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
- Record
CVE-2026-46509- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-x7q7-fchv-8h2j
@ranfdev/deepobj has a Prototype Pollution vulnerability
Impact
Prototype pollution is possible when property paths contain __proto__/constructor/prototype. The property path must not be exposed as user input.
- Record
GHSA-x7q7-fchv-8h2j- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@ranfdev/deepobjnpm |
through 1.0.2 | 1.0.3 |
@ranfdev/deepobjnpm |
before 1.0.3 | 1.0.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-46509 is a high vulnerability (CVSS 8.2) in Ranfdev Deepobj, published May 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 24th percentile. Fixed in @ranfdev/deepobj 1.0.3.