CVE-2026-121134
UNSCOREDDescription
Information loss in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3.1 Vector
No CVSS vector data available.
Exploit Intelligence
EPSS data unavailable for this CVE.
References
Related Vulnerabilities
Other CWE-221 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2026-113238 | Medium | 8.8 | 0.4% | - | Fix |
| CVE-2026-113108 | Medium | 8.8 | 0.4% | - | Fix |
| CVE-2026-113026 | Medium | 6.5 | 0.3% | - | Fix |
| CVE-2026-87535 | Medium | 6.5 | 0.3% | - | Fix |
| CVE-2025-62306 | Medium | 5.0 | 0.3% | - | - |
| CVE-2026-76027 | Medium | 4.3 | 0.2% | - | Fix |
Common questions
How do I fix CVE-2026-121134?
No published fix for CVE-2026-121134 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Embed a live status badge for CVE-2026-121134
Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-11-03.