← All advisories

High severity7.5NVD Advisory· Published Jan 13, 2026· Updated Apr 13, 2026

CVE-2026-0889

CVE-2026-0889

Description

Denial-of-service in the DOM: Service Workers component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5

Mozilla Corporation/Firefox2 versions
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <147.0
- (no CPE)range: <147
Mozilla Corporation/Thunderbird2 versions
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <147.0
- (no CPE)range: <147
osv-coords
pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
Range: < 147.0-1.1

Patches

Vulnerability mechanics

References

3

bugzilla.mozilla.org/show_bug.cginvdExploitIssue TrackingVendor Advisory
www.mozilla.org/security/advisories/mfsa2026-01/nvdVendor Advisory
www.mozilla.org/security/advisories/mfsa2026-04/nvdVendor Advisory

News mentions

0

No linked articles in our index yet.