PT-2026-40020 · Mozilla+1 · Firefox+1

Ggwhyp · CVE-2026-8388 · Published 2026-05-12 · Updated 2026-06-29

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150.0.3

Description Incorrect boundary conditions exist in the Just-In-Time (JIT) component of the JavaScript Engine. JIT is a compilation method that improves performance by compiling bytecode into native machine code at runtime.

Recommendations Update to version 150.0.3.

Fix

DoS

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

ALSA-2026:21378

ALSA-2026:21380

ALSA-2026:21381

ALSA-2026:21382

ALSA-2026:22325

ALSA-2026:22643

CVE-2026-8388

OESA-2026-2392

OESA-2026-2393

OESA-2026-2394

OESA-2026-2465

OPENSUSE-SU-2026:10813-1

OPENSUSE-SU-2026:10864-1

OPENSUSE-SU-2026:21168-1

RHSA-2026:21378

RHSA-2026:21380

RHSA-2026:21381

RHSA-2026:21382

RHSA-2026:22325

RHSA-2026:22643

RHSA-2026:26174

RHSA-2026:26268

RHSA-2026:26269

RHSA-2026:26270

RHSA-2026:26491

RHSA-2026:26492

RHSA-2026:26493

RHSA-2026:26521

RHSA-2026:26536

RHSA-2026:26539

RHSA-2026:26551

RHSA-2026:26606

RHSA-2026:26629

RHSA-2026:26630

RHSA-2026:27715

Affected Products

Firefox

Rocky Linux

References · 196

• https://access.redhat.com/errata/RHSA-2026:21382 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-45 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:21378 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10864-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:22325 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:27715 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:21380 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-8388 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:22325 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-21381.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8949 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-8391 · Security Note
• https://access.redhat.com/errata/RHSA-2026:26491 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:22643 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8953 · Security Note