CVE-2026-8969
Description
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
CVE-2026-8969 is a mitigation bypass in the DOM Security component, fixed in Firefox 151 and Thunderbird 151.
Vulnerability
CVE-2026-8969 is a mitigation bypass vulnerability in the DOM Security component of Firefox and Thunderbird, allowing an attacker to bypass certain security measures. It affects Firefox versions before 151 and Thunderbird versions before 151 [1][2].
Exploitation
An attacker could potentially exploit this vulnerability by crafting a malicious web page or email that triggers the mitigation bypass. The exact attack vector is not disclosed in available references [1][2].
Impact
Successful exploitation could allow an attacker to bypass security restrictions, potentially leading to information disclosure or further compromise. The impact is rated high [1][2].
Mitigation
The vulnerability is fixed in Firefox 151 and Thunderbird 151, released on May 19, 2026 [1][2]. Users should update to these versions. No workarounds are documented.
AI Insight generated on May 21, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
3- Range: <151
- Range: <151
- Range: <151
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- www.mozilla.org/security/advisories/mfsa2026-46/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-50/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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