CVE-2026-8390

Summary

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150.0.3.

Affected Software

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

firefox: Use-after-free in the JavaScript: WebAssembly component

Additional References

• https://access.redhat.com/security/cve/CVE-2026-8390
• https://bugzilla.redhat.com/show_bug.cgi?id=2476474
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8390.json

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2038081
• https://www.mozilla.org/security/advisories/mfsa2026-45/

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