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Unrated severityNVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026

CVE-2026-117890

CVE-2026-117890

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

Affected products

1

Mozilla Corporation/Firefoxllm-fuzzy
Range: up to 159 (Firefox), up to 153.6 (Firefox ESR)

Patches

Vulnerability mechanics

References

3

News mentions

0

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CVE-2026-117890 · VYPR