tamagui config.ts updateConfig prototype pollution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | tamagui | 2.0; 2.1; 2.2; 2.3.0 | 2.3.1 | Patch available | CNA |
- tamagui Vendor— Affected 2.0; 2.1; 2.2; 2.3.0 Fixed in 2.3.1 Patch available CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tamagui:tamagui:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:tamagui:tamagui:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
- Fix · CNA tamagui Fixed in 2.3.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15702
- 2026-10-03 Alias added: GHSA-p7vf-fh6j-jrm8
References
Sources
- CVE-2026-15702 · CVE Program
- CVE-2026-15702 · NVD
- FIRST EPSS
- GHSA-p7vf-fh6j-jrm8 · GitHub Advisory Database · CC BY 4.0
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