CVE-2026-118343
published 2026-10-27CVE-2026-118343: Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the…
PriorityP352high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.26%
18.4th percentile
Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 156.0.8078.73 | 156.0.8078.73 | |
| chrome | >= 156.0.8078.73 < 156.0.8078.73 | 156.0.8078.73 | |
| 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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Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-118343
vendor_chrome·2026-10-28·CVSS 8.8
CVE-2026-118343 [HIGH] Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-118343
Stable Channel Update for ChromeOS / ChromeOS Flex
CVE-2026-118343
Red Hat
chromium-browser: Improper input validation in ReadingList
vendor_redhat·2026-10-27·CVSS 8.8
CVE-2026-118343 [HIGH] CWE-20 chromium-browser: Improper input validation in ReadingList
chromium-browser: Improper input validation in ReadingList
Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
An improper input validation flaw was found in the ReadingList component of the Chromium browser.
Upstream bug(s):
https://issues.chromium.org/issues/573389782
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Chrome
Stable Channel Update for Desktop: CVE-2026-118359
vendor_chrome·2026-10-27
CVE-2026-118359 [HIGH] Stable Channel Update for Desktop: CVE-2026-118359
Stable Channel Update for Desktop
CVE-2026-118359: Memory corruption in V8. Reported by zenneth (randomguy6407) on 2026-10-14 [TBD][ 573389782 ] High CVE-2026-118343: Improper input validation in ReadingList
Reported by malichamdan on 2026-10-14 [TBD][ 573938968 ] High CVE-2026-118311: Memory corruption in Media
Severity: high
GHSA
Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page.
ghsa_unreviewed·2026-10-28
CVE-2026-118343 CWE-20 Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page.
Improper input validation in ReadingList in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
VulDB
Google Chrome up to 156.0.8078.47 ReadingList input validation
vuldb·2026-10-28
CVE-2026-118343 [CRITICAL] Google Chrome up to 156.0.8078.47 ReadingList input validation
A vulnerability labeled as critical has been found in Google Chrome. Affected by this issue is some unknown functionality of the component ReadingList. The manipulation results in improper input validation.
This vulnerability is identified as CVE-2026-118343. The attack can be executed remotely. There is not any exploit available.
The affected component should be upgraded.
No detection rules found.
No public exploits indexed.
2026-10-27
Published