CVE detail
CVE-2026-0878
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 30.0 · diversity 14.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
31 source links · newest first
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0878.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comJan 13, 2026, 2:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2428965bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/security/cve/CVE-2026-0878access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2286access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2271access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2231access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2220access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2074access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2073access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2070access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2069access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2047access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2044access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2043access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:2041access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1487access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1471access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1462access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1461access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1415access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1414access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1413access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:1320access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:0924access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:0694access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://access.redhat.com/errata/RHSA-2026:0667access.redhat.com
No excerpt available.
Exploitaccess.redhat.comJan 13, 2026, 2:16 PM - https://www.mozilla.org/security/advisories/mfsa2026-05/www.mozilla.org
No excerpt available.
Vendor Advisorywww.mozilla.orgJan 13, 2026, 2:16 PM - https://www.mozilla.org/security/advisories/mfsa2026-04/www.mozilla.org
No excerpt available.
Vendor Advisorywww.mozilla.orgJan 13, 2026, 2:16 PM - https://www.mozilla.org/security/advisories/mfsa2026-03/www.mozilla.org
No excerpt available.
Vendor Advisorywww.mozilla.orgJan 13, 2026, 2:16 PM - https://www.mozilla.org/security/advisories/mfsa2026-01/www.mozilla.org
No excerpt available.
Vendor Advisorywww.mozilla.orgJan 13, 2026, 2:16 PM - https://bugzilla.mozilla.org/show_bug.cgi?id=2003989bugzilla.mozilla.org
No excerpt available.
Exploitbugzilla.mozilla.orgJan 13, 2026, 2:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
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- CVE-2026-16368CVSS 9.8 · Critical
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