CVE-2026-91721
published 2026-09-15CVE-2026-91721: Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a…
PriorityP353high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.39%
30.7th percentile
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 153.0.8010.47 | 153.0.8010.47 | |
| chrome | >= 153.0.8010.47 < 153.0.8010.47 | 153.0.8010.47 | |
| chrome_desktop | — | — |
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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GHSA
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page.
ghsa_unreviewed·2026-09-15
CVE-2026-91721 [HIGH] CWE-416 Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page.
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2026-91721
vendor_chrome·2026-10-07·CVSS 8.8
CVE-2026-91721 [HIGH] Long Term Support Channel Update for ChromeOS: CVE-2026-91721
Long Term Support Channel Update for ChromeOS
CVE-2026-91721
Chrome
Stable Channel Update for Desktop: CVE-2026-91726
vendor_chrome·2026-09-15·CVSS 8.8
CVE-2026-91726 [CRITICAL] Stable Channel Update for Desktop: CVE-2026-91726
Stable Channel Update for Desktop
CVE-2026-91726: Out of bounds read in WebGL. Reported by Google on 2026-09-03
[TBD][ 557320614 ] Critical CVE-2026-91721: Use after free in Internals
Reported by xinyang on 2026-09-04
Severity: critical
Red Hat
chromium-browser: chromium-browser: Use after free in Internals
vendor_redhat·2026-09-15·CVSS 8.8
CVE-2026-91721 [HIGH] CWE-825 chromium-browser: chromium-browser: Use after free in Internals
chromium-browser: chromium-browser: Use after free in Internals
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
An use after free flaw was found in the Internals component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=557320614
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2
bugzilla·2026-09-17·CVSS 3.1
CVE-2026-91708 [LOW] CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2
CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2026-91721 ... 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.
Incorrect reference resolution in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a local attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)
Out of bounds write in ServiceWorker in Google Chrome prior
Bugzilla
CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2
bugzilla·2026-09-17·CVSS 3.1
CVE-2026-91708 [LOW] CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2
CVE-2026-91708 CVE-2026-91709 CVE-2026-91710 CVE-2026-91711 CVE-2026-91712 CVE-2026-91713 CVE-2026-91714 CVE-2026-91715 CVE-2026-91716 CVE-2026-91717 CVE-2026-91718 CVE-2026-91719 CVE-2026-91720 CVE-2026-91721 ... 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.
Incorrect reference resolution in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a local attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)
Out of bounds write in ServiceWorker in Google Chrome prior t
Bugzilla
CVE-2026-91721 chromium-browser: Google Chrome: Arbitrary Code Execution via crafted HTML page
bugzilla·2026-09-15·CVSS 8.8
CVE-2026-91721 [HIGH] CVE-2026-91721 chromium-browser: Google Chrome: Arbitrary Code Execution via crafted HTML page
CVE-2026-91721 chromium-browser: Google Chrome: Arbitrary Code Execution via crafted HTML page
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Hackernews
⚡ Weekly Recap: Cisco 0-Day, AI Agent RCE, ClickFix Attacks, ClickFix Surge, and Browser Hijacks
blogs_hackernews·2026-09-21·CVSS 10.0
CVE-2026-76460 [CRITICAL] ⚡ Weekly Recap: Cisco 0-Day, AI Agent RCE, ClickFix Attacks, ClickFix Surge, and Browser Hijacks
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## ⚡ Weekly Recap: Cisco 0-Day, AI Agent RCE, ClickFix Attacks, ClickFix Surge, and Browser Hijacks
A browser. A plugin. A package. A login screen. Normal stuff. That is basically the problem this week.
The trouble keeps showing up inside things people already trust: code that takes a bad turn, old payloads coming back, exposed systems, weak checks, fake fixes, and attack paths that look almost too easy. Even the research side is getting messy, with more findings, more automation, and not always more clarity.
Nothing here needs much drama. Just a lot of small doors left open. Here’s what happened.
## ⚡ Threat of the Week
C
2026-09-15
Published