CVE-2026-15702 tamagui config.ts updateConfig prototype pollution
Remote attackers can exploit prototype pollution in Tamagui's updateConfig function to achieve code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15702?
CVE-2026-15702 is a medium-severity code injection vulnerability in tamagui, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Which versions are affected by CVE-2026-15702?
How do I fix CVE-2026-15702?
No fix has been published for CVE-2026-15702 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-15702 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15702 exists.
Sources
Also known as GHSA-p7vf-fh6j-jrm8.