CVE-2026-100828
published 2026-09-29CVE-2026-100828: Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
PriorityP348critical9.6CVSS 3.1
AVNACLPRNUIRSCCHIHAH
EPSS
0.24%
13.9th percentile
Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 157 | Firefox 157 |
| mozilla | firefox | < 153.4.0 | 153.4.0 |
| mozilla | firefox | >= 154.0.0 < 157.0.0 | 157.0.0 |
| mozilla | firefox_esr | < Firefox ESR 153.4 | Firefox ESR 153.4 |
| mozilla | thunderbird | < Thunderbird 153.4 | Thunderbird 153.4 |
| mozilla | thunderbird | < Thunderbird 157 | Thunderbird 157 |
| mozilla | thunderbird | < 153.4.0 | 153.4.0 |
| mozilla | thunderbird | >= 154.0 < 157.0 | 157.0 |
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Mozilla
Mozilla Foundation Security Advisory 2026-103: CVE-2026-100828
vendor_mozilla
CVE-2026-100828 Mozilla Foundation Security Advisory 2026-103: CVE-2026-100828
Mozilla Foundation Security Advisory 2026-103
CVE: CVE-2026-100828
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.4
Mozilla
Mozilla Foundation Security Advisory 2026-100: CVE-2026-100828
vendor_mozilla
CVE-2026-100828 Mozilla Foundation Security Advisory 2026-100: CVE-2026-100828
Mozilla Foundation Security Advisory 2026-100
CVE: CVE-2026-100828
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.4
Mozilla
Mozilla Foundation Security Advisory 2026-101: CVE-2026-100828
vendor_mozilla
CVE-2026-100828 Mozilla Foundation Security Advisory 2026-101: CVE-2026-100828
Mozilla Foundation Security Advisory 2026-101
CVE: CVE-2026-100828
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 157
Mozilla
Mozilla Foundation Security Advisory 2026-97: CVE-2026-100828
vendor_mozilla
CVE-2026-100828 Mozilla Foundation Security Advisory 2026-97: CVE-2026-100828
Mozilla Foundation Security Advisory 2026-97
CVE: CVE-2026-100828
Product: Firefox
Impact: low
Fixed in: Firefox 157
GHSA
Mitigation bypass in the Bookmarks & History component.
ghsa_unreviewed·2026-09-29
CVE-2026-100828 Mitigation bypass in the Bookmarks & History component.
Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-29
Published