CVE-2026-12303
Description
Information disclosure in Firefox Graphics: WebGPU due to incorrect boundary conditions; fixed in Firefox 152.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Information disclosure in Firefox Graphics: WebGPU due to incorrect boundary conditions; fixed in Firefox 152.
Vulnerability
The vulnerability is an information disclosure issue caused by incorrect boundary conditions in the Graphics: WebGPU component. This affects Firefox versions prior to 152. The flaw can be triggered through a crafted web page that exploits the boundary condition error. [1]
Exploitation
An attacker can remotely exploit this vulnerability by convincing a user to visit a malicious web page. No special privileges or user interaction beyond normal browsing is required. The exact exploitation steps are not detailed in the available references, but the vulnerability is rated as high impact. [1]
Impact
Successful exploitation results in information disclosure, potentially exposing sensitive data that should be protected by the browser's security model. The impact is rated as high by Mozilla. [1]
Mitigation
The vulnerability is fixed in Firefox 152, released on June 16, 2026. Users should update to the latest version to mitigate the risk. No workarounds are available. [1]
AI Insight generated on Jun 16, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: <152
- Range: <152
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
3News mentions
0No linked articles in our index yet.