CVE-2026-8965
published 2026-05-19CVE-2026-8965: Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.32%
24.8th percentile
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 151 | Firefox 151 |
| mozilla | firefox | < 151.0.0 | 151.0.0 |
| mozilla | thunderbird | < Thunderbird 151 | Thunderbird 151 |
| mozilla | thunderbird | < 151.0.0 | 151.0.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_redhat7.5HIGH
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Red Hat
firefox: thunderbird: Information disclosure in the DOM: Security component
vendor_redhat·2026-05-19·CVSS 7.5
CVE-2026-8965 [HIGH] CWE-368 firefox: thunderbird: Information disclosure in the DOM: Security component
firefox: thunderbird: Information disclosure in the DOM: Security component
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Information disclosure in the DOM: Security component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/thunderbird-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: thunderbird (Red Hat Enterprise Linux 10) - Not affected
Package: f
Mozilla
Mozilla Foundation Security Advisory 2026-50: CVE-2026-8965
vendor_mozilla
CVE-2026-8965 Mozilla Foundation Security Advisory 2026-50: CVE-2026-8965
Mozilla Foundation Security Advisory 2026-50
CVE: CVE-2026-8965
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 151
Mozilla
Mozilla Foundation Security Advisory 2026-46: CVE-2026-8965
vendor_mozilla
CVE-2026-8965 Mozilla Foundation Security Advisory 2026-46: CVE-2026-8965
Mozilla Foundation Security Advisory 2026-46
CVE: CVE-2026-8965
Product: Firefox
Impact: high
Fixed in: Firefox 151
VulDB
Mozilla Firefox up to 150 Security information disclosure (EUVD-2026-30913)
vuldb·2026-05-19
CVE-2026-8965 [LOW] Mozilla Firefox up to 150 Security information disclosure (EUVD-2026-30913)
A vulnerability, which was classified as problematic, has been found in Mozilla Firefox up to 150. This impacts an unknown function of the component Security Component. Performing a manipulation results in information disclosure.
This vulnerability is cataloged as CVE-2026-8965. It is possible to initiate the attack remotely. There is no exploit available.
It is advisable to upgrade the affected component.
GHSA
GHSA-572x-vhpq-w4gm: Information disclosure in the DOM: Security component
ghsa_unreviewed·2026-05-19
CVE-2026-8965 [HIGH] CWE-200 GHSA-572x-vhpq-w4gm: Information disclosure in the DOM: Security component
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151.
No detection rules found.
No public exploits indexed.
2026-05-19
Published