CVE-2026-10702

JIT miscompilation in the JavaScript Engine: JIT component

State: Published
Severity: 4.3 Medium
Published: Jun 2, 2026
Updated: Jul 15, 2026
Reserved: Jun 2, 2026

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CISA-ADP
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	redhat-SADP

Weaknesses

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
CWE-733 Compiler Optimization Removal or Modification of Security-critical Code

Affected Products

Product	Versions
FirefoxMozilla	151.0.3 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2040903
https://www.mozilla.org/security/advisories/mfsa2026-54/
https://access.redhat.com/security/cve/CVE-2026-10702vdb-entry
RHBZ#2484118issue-tracking
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10702.json

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