CVE-2026-11645: Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
Vulnerability summary
CVE-2026-11645 is a high (CVSS 8.8) Out-of-bounds Read vulnerability in Google Chromium V8. It is known to be exploited: CISA lists it, first on 09-06-2026. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 4Timeline
- 08-06-2026PublishedVulnerability first disclosed.
- 09-06-2026Added to CISA KEVGoogle Chromium V8 Out-of-Bounds Read and Write Vulnerability
- 10-06-2026Last modifiedVulnerability information updated.
- 23-06-2026CISA remediation dueApply mitigations per vendor instructions.
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)
CVSS metrics
3 scores · 3 sources · 1 version- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.44%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
+0.25 pp
From 2.19% on 21-09-2026
Known exploited
Compare KEV catalogs
CISA KEVListed- Added
- 09-06-2026
- Federal due date
- 23-06-2026
CISA 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. chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html issues.chromium.org/issues/506689381 nvd.nist.gov/vuln/detail/CVE-2026-11645
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard1 product
- chromium< 149.0.7827.102-r0
Debian1 product
- chromium< 149.0.7827.102-1~deb12u1 | < 149.0.7827.102-1~deb13u1 | < 149.0.7827.102-1
Google1 product
- chrome≥ 149.0.7827.103, < 149.0.7827.103 | < 149.0.7827.103
Wolfi1 product
- chromium< 149.0.7827.102-r0
4 vendors · 4 products
References
4 links- chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.htmlRelease NotesVendor Advisory
- issues.chromium.org/issues/506689381Permissions Required
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-11645Government ResourceUS Government Resource
