CVE-2026-121107
HIGHCVSS 8.8/10EPSS 0.20%
Last modified
CVE-2026-121107 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Incorrect authorization 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: High). EPSS estimates a 0.20% chance of exploitation in the next 30 days.
Description
Incorrect authorization 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: High)
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Chrome | >= 157.0.8103.38, < 157.0.8103.38 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-121107?
Incorrect authorization 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: High)
How severe is CVE-2026-121107?
CVE-2026-121107 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-121107?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2026-121107?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST