JIT miscompilation in the JavaScript: WebAssembly component.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Feb 24, 2026 · NIST NVD

   Detected

   JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

2. Jul 15, 2026 · NIST NVD

   Updated

   JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Affected

• cpe mozilla/firefoxversion unspecified
• cpe mozilla/thunderbirdversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-2796

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-2796

  JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

  nvd.nist.gov

References

• Reference · access.redhat.com
• Permissions Required · bugzilla.mozilla.org
• Reference · bugzilla.redhat.com
• Reference · security.access.redhat.com
• Vendor Advisory · mozilla.org
• Vendor Advisory · mozilla.org