CVEs / CVE-2026-11645
CVE-2026-11645: Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
- Known exploited in the CISA KEV catalog since 9 Jun 2026
- high 8.8 CVSS 3.1 (from the CNA)
- EPSS 2.44% chance of exploitation in the next 30 days, higher than 84% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Description
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Google Chrome | from 149.0.7827.103, before 149.0.7827.103 | 149.0.7827.103 |
Exploitation
| In CISA KEV since | 9 Jun 2026 |
|---|---|
| Due date for US federal agencies | 23 Jun 2026 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by the CNA (134c704f-9b21-4f2e-91b3-4a467353bcc0) |
|---|---|
| Weakness | CWE-125, CWE-787 |
References
- CVE-2026-11645 on NVD
- CVE-2026-11645 in the CISA KEV catalog
- https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html (cited by CISA)
- https://issues.chromium.org/issues/506689381 (cited by CISA)
- https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html Release Notes, Vendor Advisory
- https://issues.chromium.org/issues/506689381 Permissions Required
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-11645 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.