Multiple vulnerabilities (CVE-2025-6558, CVE-2025-7656, CVE-2025-7657, etc.) affect Chromium-based browsers, with specific CVEs scoring 8.8 (HIGH) on the CVSS scale. Affected versions include Google Chrome prior to 138.0.7204.157, Microsoft Edge prior to 142.0.3595.53, Opera prior to 126.0.5744.0, and Vivaldi prior to 7.7.3851.48. The resolution is to upgrade to the respective fixed versions, as no workaround is currently available.
Multiple vulnerabilities have been found in Chromium, Google Chrome, Microsoft Edge, Opera, Vivaldi. Affected packages Package www-client/chromium on all architectures Affected versions < 142.0.7444.134 Unaffected versions >= 142.0.7444.134 Package www-client/google-chrome on all architectures Affected versions < 142.0.7444.59 Unaffected versions >= 142.0.7444.59 Package www-client/microsoft-edge on all architectures Affected versions < 142.0.3595.53 Unaffected versions >= 142.0.3595.53 Package www-client/opera on all architectures Affected versions < 126.0.5744.0 Unaffected versions >= 126.0.5744.0 Package www-client/vivaldi on all architectures Affected versions < 7.7.3851.48 Unaffected versions >= 7.7.3851.48 Background Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web. Google Chrome is one fast, simple, and secure browser for all your devices. Microsoft Edge is a browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier. Opera is a fast and secure web browser. Vivaldi is a powerful, personal and private browser that adapts to you. Description Multiple vulnerabilities have been discovered in Chromium, Google Chrome, Microsoft Edge, Opera, Vivaldi. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE identifiers for details. Workaround There is no known workaround at this time. Resolution All Chromium users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/chromium-142.0.7444.134" All Google Chrome users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/google-chrome-142.0.7444.59" All Microsoft Edge users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/microsoft-edge-142.0.3595.53" All Opera users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/opera-126.0.5744.0" All Vivaldi users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/vivaldi-7.7.3851.48" References CVE-2025-6558 CVE-2025-7656 CVE-2025-7657 CVE-2025-8010 CVE-2025-8011 CVE-2025-8292 CVE-2025-9864 CVE-2025-9865 CVE-2025-9866 CVE-2025-9867 CVE-2025-10200 CVE-2025-10201 CVE-2025-10890 CVE-2025-10891 CVE-2025-10892 CVE-2025-12036 CVE-2025-12428 CVE-2025-12429 CVE-2025-12430 CVE-2025-12431 CVE-2025-12432 CVE-2025-12433 CVE-2025-12434 CVE-2025-12435 CVE-2025-12436 CVE-2025-12437 CVE-2025-12438 CVE-2025-12439 CVE-2025-12440 CVE-2025-12441 CVE-2025-12443 CVE-2025-12444 CVE-2025-12445 CVE-2025-12446 CVE-2025-12447 Release date September 12, 2026 Latest revision September 12, 2026: 1 Severity high Exploitable remote Bugzilla entries 960254 960556 960851 962288 962717 963346 965344