FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

Mozilla -- multiple vulnerabilities

Affected packages
	firefox	<	147.0.0,2
	thunderbird	<	147.0.0

Details

VuXML ID	ff20d3a3-f211-11f0-9ca3-b42e991fc52e
Discovery	2026-01-13
Entry	2026-01-15

Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

Denial-of-service in the DOM: Service Workers component.

Information disclosure in the XML component.

Sandbox escape in the Messaging System component.

References

CVE Name	CVE-2026-0881
CVE Name	CVE-2026-0888
CVE Name	CVE-2026-0889
CVE Name	CVE-2026-0892