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firefox: thunderbird: Process isolation bypass using "javascript:" URI links in cross-origin frames

🗓️ 15 May 2025 16:07:55Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

Process isolation bypass via javascript: links in cross-origin frames could escape sandbox.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64thunderbird0:128.10.0-1.el8_6thunderbird-0:128.10.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird0:128.10.0-1.el8_6thunderbird-0:128.10.0-1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xthunderbird0:128.10.0-1.el8_6thunderbird-0:128.10.0-1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64thunderbird0:128.10.0-1.el8_6thunderbird-0:128.10.0-1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64thunderbird-debuginfo0:128.10.0-1.el8_6thunderbird-debuginfo-0:128.10.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird-debuginfo0:128.10.0-1.el8_6thunderbird-debuginfo-0:128.10.0-1.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xthunderbird-debuginfo0:128.10.0-1.el8_6thunderbird-debuginfo-0:128.10.0-1.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64thunderbird-debuginfo0:128.10.0-1.el8_6thunderbird-debuginfo-0:128.10.0-1.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64thunderbird-debugsource0:128.10.0-1.el8_6thunderbird-debugsource-0:128.10.0-1.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64lethunderbird-debugsource0:128.10.0-1.el8_6thunderbird-debugsource-0:128.10.0-1.el8_6.ppc64le.rpm
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28 Jun 2026 09:27Current
7.4High risk
Vulners AI Score7.4
CVSS 3.19.1
EPSS0.00376
SSVC
8