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Description

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

PUBLISHED Reserved 2026-06-15 | Published 2026-06-16 | Updated 2026-06-16 | Assigner mozilla

Product status

152 (rpm)
unaffected

152 (rpm)
unaffected

Credits

JunYoung Park

References

bugzilla.mozilla.org/show_bug.cgi?id=2032943

www.mozilla.org/security/advisories/mfsa2026-57/

www.mozilla.org/security/advisories/mfsa2026-60/

cve.org (CVE-2026-12321)

nvd.nist.gov (CVE-2026-12321)

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