CVE-2026-8091
Incorrect boundary conditions in the Audio/Video: Playback component
CVSS Score
9.8
EPSS Score
0.4%
EPSS Percentile
36th
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | May 7, 2026 |
| Last Updated | Jul 22, 2026 |
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Affected Versions
Mozilla / Firefox
All versions affected Mozilla / Thunderbird
All versions affected References
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2029301 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-30/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-33/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-36/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-39/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-42/ access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-8091 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2467699 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8091.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26551 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:27715 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26539 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26629 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26270 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26606 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26536 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26630 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26268 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26491 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26269 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26493 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26174 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26492 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:26521
Credits
The Mozilla Fuzzing Team