CVE-2026-6300
published 2026-04-15CVE-2026-6300: Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page…
PriorityP353high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.34%
26.8th percentile
Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 147.0.7727.101 | 147.0.7727.101 | |
| chrome | >= 147.0.7727.101 < 147.0.7727.101 | 147.0.7727.101 | |
| chrome_chrome | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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Chrome
Stable Channel Update for Desktop: CVE-2026-6300
vendor_chrome·2026-04-15·CVSS 8.8
CVE-2026-6300 [HIGH] Stable Channel Update for Desktop: CVE-2026-6300
Stable Channel Update for Desktop
CVE-2026-6300: Use after free in CSS. Reported by c6eed09fc8b174b0f3eebedcceb1e792 on 2026-03-12 [TBD][ 495273999 ] High CVE-2026-6301: Type Confusion in Turbofan
Reported by qymag1c on 2026-03-23 [TBD][ 495477995 ] High CVE-2026-6302: Use after free in Video
Severity: high
Red Hat
chromium-browser: Use after free in CSS
vendor_redhat·2026-04-15·CVSS 8.8
CVE-2026-6300 [HIGH] CWE-825 chromium-browser: Use after free in CSS
chromium-browser: Use after free in CSS
An use after free flaw was found in the CSS component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=491994185
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
VulDB
Google Chrome up to 147.0.7727.55 CSS use after free (ID 491994 / Nessus ID 307658)
vuldb·2026-04-28·CVSS 8.8
CVE-2026-6300 [HIGH] Google Chrome up to 147.0.7727.55 CSS use after free (ID 491994 / Nessus ID 307658)
A vulnerability categorized as critical has been discovered in Google Chrome. This vulnerability affects unknown code of the component CSS. Executing a manipulation can lead to use after free.
This vulnerability appears as CVE-2026-6300. The attack may be performed from remote. There is no available exploit.
It is advisable to upgrade the affected component.
GHSA
GHSA-9w25-v364-3jpm: Use after free in CSS in Google Chrome prior to 147
ghsa_unreviewed·2026-04-15
CVE-2026-6300 [HIGH] CWE-416 GHSA-9w25-v364-3jpm: Use after free in CSS in Google Chrome prior to 147
Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-
bugzilla·2026-04-15·CVSS 9.6
CVE-2026-6296 [CRITICAL] CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-
CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-2026-6362 chromium: various flaws [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-
bugzilla·2026-04-15·CVSS 9.6
CVE-2026-6296 [CRITICAL] CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-
CVE-2026-6296 CVE-2026-6297 CVE-2026-6298 CVE-2026-6300 CVE-2026-6301 CVE-2026-6302 CVE-2026-6305 CVE-2026-6306 CVE-2026-6307 CVE-2026-6318 CVE-2026-6319 CVE-2026-6358 CVE-2026-6359 CVE-2026-6360 CVE-2026-6362 chromium: various flaws [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6300 chromium-browser: Use after free in CSS
bugzilla·2026-04-15·CVSS 8.8
CVE-2026-6300 [HIGH] CVE-2026-6300 chromium-browser: Use after free in CSS
CVE-2026-6300 chromium-browser: Use after free in CSS
Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
2026-04-15
Published