Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4592-1 firefox-esr security update
Debian DLA Debian DLA DLA-4594-1 thunderbird security update
Debian DSA Debian DSA DSA-6283-1 firefox-esr security update
Debian DSA Debian DSA DSA-6288-1 thunderbird security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:21378 cve-icon
https://access.redhat.com/errata/RHSA-2026:21380 cve-icon
https://access.redhat.com/errata/RHSA-2026:21381 cve-icon
https://access.redhat.com/errata/RHSA-2026:21382 cve-icon
https://access.redhat.com/errata/RHSA-2026:22325 cve-icon
https://access.redhat.com/errata/RHSA-2026:22643 cve-icon
https://access.redhat.com/errata/RHSA-2026:26174 cve-icon
https://access.redhat.com/errata/RHSA-2026:26268 cve-icon
https://access.redhat.com/errata/RHSA-2026:26269 cve-icon
https://access.redhat.com/errata/RHSA-2026:26270 cve-icon
https://access.redhat.com/errata/RHSA-2026:26491 cve-icon
https://access.redhat.com/errata/RHSA-2026:26492 cve-icon
https://access.redhat.com/errata/RHSA-2026:26493 cve-icon
https://access.redhat.com/errata/RHSA-2026:26521 cve-icon
https://access.redhat.com/errata/RHSA-2026:26536 cve-icon
https://access.redhat.com/errata/RHSA-2026:26539 cve-icon
https://access.redhat.com/errata/RHSA-2026:26551 cve-icon
https://access.redhat.com/errata/RHSA-2026:26606 cve-icon
https://access.redhat.com/errata/RHSA-2026:26629 cve-icon
https://access.redhat.com/errata/RHSA-2026:26630 cve-icon
https://access.redhat.com/errata/RHSA-2026:27715 cve-icon
https://access.redhat.com/security/cve/CVE-2026-8388 cve-icon
https://bugzilla.mozilla.org/show_bug.cgi?id=2036978 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2476469 cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-8388 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8388.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-8388 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-45/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-45/#CVE-2026-8388 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-47/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-48/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8388 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-51/ cve-icon cve-icon
History

Wed, 20 May 2026 00:15:00 +0000


Tue, 19 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, and Firefox ESR 140.11. Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
References

Tue, 19 May 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787

Tue, 19 May 2026 13:45:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3. Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, and Firefox ESR 140.11.
References

Tue, 12 May 2026 20:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Tue, 12 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 12 May 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-787

Tue, 12 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 12 May 2026 13:30:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
Title Incorrect boundary conditions in the JavaScript Engine: JIT component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-07-15T02:48:09.505Z

Reserved: 2026-05-12T12:36:09.855Z

Link: CVE-2026-8388

cve-icon Vulnrichment

Updated: 2026-07-15T02:48:09.505Z

cve-icon NVD

Status : Modified

Published: 2026-05-12T14:17:11.813

Modified: 2026-07-15T01:17:03.147

Link: CVE-2026-8388

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-12T12:36:10Z

Links: CVE-2026-8388 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T01:30:06Z

Weaknesses