CVE-2026-16266

MediumCVSS 4.0/10Last modified Jul 23, 2026

Description

Versions of the package mongo-object before 3.0.3 are vulnerable to Prototype Pollution via the expandKey() function in util.js. An attacker can modify the JavaScript prototype chain by supplying a crafted property path containing special keys such as __proto__.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-1321

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Jul 21, 2026
Last modified: Jul 23, 2026
NVD status: Awaiting Analysis

Related CVEs from 2026

CVE-2026-162678.1The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submi CVE-2026-162688.2The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied U CVE-2026-162694.8The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to byp CVE-2026-16278.1An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of t CVE-2026-162706.9Open Mercato does not validate regex rules. An attacker with privileges to create the regex rule can add an unsafe regex to a field. When so CVE-2026-162729.1Use of less trusted source vulnerability in PayTR Payment and Electronic Money Institution Inc. PayTR Virtual Pos iFrame API WHMCS Module al CVE-2026-162734.6The Narrative Publisher WordPress plugin through 1.0.7 does not restrict write access to a REST-exposed post meta field or escape it when re CVE-2026-162742.7The Classified Listing WordPress plugin before 5.4.4 does not perform a capability or ownership check on an AJAX action that returns a post CVE-2026-162755.3GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.4 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 th CVE-2026-162762.7The Classified Listing WordPress plugin before 5.4.4 does not perform a capability check on an AJAX action that returns aggregated store re CVE-2026-162776.5A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address info CVE-2026-162799.3An Improper Authorization vulnerability affecting 3DPassport in 3DSwymer from Release 3DEXPERIENCE R2023x through Release 3DEXPERIENCE R2026