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CVE-2026-2768— Sandbox escape in the Storage: IndexedDB component

EPSS 0.10% · P27
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I. Basic Information for CVE-2026-2768

Vulnerability Information
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Vulnerability Title
Sandbox escape in the Storage: IndexedDB component
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mozilla多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla多款产品存在安全漏洞，该漏洞源于Storage: IndexedDB组件存在沙箱逃逸。以下产品及版本受到影响：Firefox 148之前版本、Firefox
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MozillaFirefox 140.8 ~ 140.* -
MozillaThunderbird 140.8 ~ 140.* -

II. Public POCs for CVE-2026-2768

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III. Intelligence Information for CVE-2026-2768

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Same Patch Batch · Mozilla · 2026-02-24 · 52 CVEs total

CVE-2026-2773Incorrect boundary conditions in the Web Audio component
CVE-2026-2757Incorrect boundary conditions in the WebRTC: Audio/Video component
CVE-2026-2758Use-after-free in the JavaScript: GC component
CVE-2026-2764JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
CVE-2026-2760Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
CVE-2026-2761Sandbox escape in the Graphics: WebRender component
CVE-2026-2762Integer overflow in the JavaScript: Standard Library component
CVE-2026-2759Incorrect boundary conditions in the Graphics: ImageLib component
CVE-2026-2771Undefined behavior in the DOM: Core & HTML component
CVE-2026-2772Use-after-free in the Audio/Video: Playback component
CVE-2026-2770Use-after-free in the DOM: Bindings (WebIDL) component
CVE-2026-2774Integer overflow in the Audio/Video component
CVE-2026-2775Mitigation bypass in the DOM: HTML Parser component
CVE-2026-2776Sandbox escape due to incorrect boundary conditions in the Telemetry component in External
CVE-2026-2777Privilege escalation in the Messaging System component
CVE-2026-2778Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
CVE-2026-2779Incorrect boundary conditions in the Networking: JAR component
CVE-2026-2780Privilege escalation in the Netmonitor component
CVE-2026-2781Integer overflow in the Libraries component in NSS
CVE-2026-2782Privilege escalation in the Netmonitor component

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-2768

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