CVE-2026-0878 (GCVE-0-2026-0878)
Vulnerability from cvelistv5
Published
2026-01-13 13:30
Modified
2026-07-15 01:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected: 140.7 Unaffected: 147 |
|||||||
|
|||||||||
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This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"f16b083a-5664-49f3-a51e-8d479e5ed7fe\", \"shortName\": \"mozilla\", \"dateUpdated\": \"2026-04-13T13:51:40.607Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-0878\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-30T12:06:17.506Z\", \"dateReserved\": \"2026-01-13T13:30:53.395Z\", \"assignerOrgId\": \"f16b083a-5664-49f3-a51e-8d479e5ed7fe\", \"datePublished\": \"2026-01-13T13:30:53.697Z\", \"assignerShortName\": \"mozilla\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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