CVE-2026-46509

deepobj: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

HIGH

8.2

CVSS Score

Published: May 28, 2026 at 05:52 PM UTC

Updated: October 26, 2026 at 01:10 PM UTC

1 product affected across 1 vendorDeepobj

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Severity

HIGH8.2

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Deepobj · Ranfdev

90%

v < 1.0.3

Affected range stops below 1.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/ranfdev/deepobj/security/advisories/GHSA-x7q7-fchv-8h2j

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: LOW

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-1321

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