CVE-2026-15702

tamagui config.ts updateConfig prototype pollution

State: Published
Severity: 5.3 Medium
Published: Jul 14, 2026
Updated: Jul 15, 2026
Reserved: Jul 14, 2026

Description

A security vulnerability has been detected in tamagui up to 2.3.0. This affects the function updateConfig of the file code/core/web/src/config.ts. Such manipulation leads to improperly controlled modification of object prototype attributes. The attack may be performed from remote. Upgrading to version 2.3.1 is able to mitigate this issue. The name of the patch is e46af9879b7627934ea4d6d6e46e65cea53abb3d. The affected component should be upgraded.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
CWE-94 Code Injection

Affected Products

Product	Versions
tamaguin/a	2.0Affected 2.1Affected 2.2Affected 2.3.0Affected 2.3.1Not affected

References

VDB-378249 | tamagui config.ts updateConfig prototype pollutionvdb-entrytechnical-description
VDB-378249 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-15702 | CVE Analysis and Reportthird-party-advisory
Submit #856138 | Node.js @tamagui/web 2.2.0 Prototype Pollutionthird-party-advisory
https://github.com/tamagui/tamagui/issues/4029issue-tracking
https://github.com/tamagui/tamagui/commit/e46af9879b7627934ea4d6d6e46e65cea53abb3dpatch
https://github.com/tamagui/tamagui/releases/tag/v2.3.1patch
https://github.com/tamagui/tamagui/product

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.