Vulnerability · Published Jul 14, 2026 · Assigned by VulDB
CVE-2026-15702tamagui config.ts updateConfig prototype pollution
Medium 6.3
In plain English
A medium-severity prototype pollution in tamagui. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official 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.
Affected products (as reported)
Weakness: CWE-1321, CWE-94 · Vector: 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
References
- VDB-378249 | tamagui config.ts updateConfig prototype pollution vdb-entry, technical-description
- VDB-378249 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-15702 | CVE Analysis and Report third-party-advisory
- Submit #856138 | Node.js @tamagui/web 2.2.0 Prototype Pollution third-party-advisory
- https://github.com/tamagui/tamagui/issues/4029 issue-tracking
- https://github.com/tamagui/tamagui/commit/e46af9879b7627934ea4d6d6e46e65cea53abb3d patch
- https://github.com/tamagui/tamagui/releases/tag/v2.3.1 patch
- https://github.com/tamagui/tamagui/ product