cvedb.io
CVE-2026-6755
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-04-21T13:16:21.510 · Last modified 2026-06-17T11:01:16.000

Summary

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Affected products

mozilla — firefox

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.