CVE-2026-8005
published 2026-05-06CVE-2026-8005: Insufficient validation of untrusted input in Cast in Google Chrome prior to 148.0.7778.96 allowed an attacker on the local network segment to bypass same…
PriorityP419medium4.3CVSS 3.1
AVAACLPRNUINSUCLINAN
EPSS
0.10%
1.2th percentile
Insufficient validation of untrusted input in Cast in Google Chrome prior to 148.0.7778.96 allowed an attacker on the local network segment to bypass same origin policy via malicious network traffic. (Chromium security severity: Low)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 148.0.7778.96 | 148.0.7778.96 | |
| chrome | >= 148.0.7778.96 < 148.0.7778.96 | 148.0.7778.96 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vendor_redhat4.3MEDIUM
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Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-8005
vendor_chrome·2026-05-19·CVSS 4.3
CVE-2026-8005 [MEDIUM] Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-8005
Stable Channel Update for ChromeOS / ChromeOS Flex
CVE-2026-8005
Chrome
Stable Channel Update for Desktop: CVE-2026-8003
vendor_chrome·2026-05-05·CVSS 5.4
CVE-2026-8003 [LOW] Stable Channel Update for Desktop: CVE-2026-8003
Stable Channel Update for Desktop
CVE-2026-8003: Insufficient validation of untrusted input in TabGroups. Reported by Google on 2026-03-25 [N/A][ 496189510 ] Low CVE-2026-8004: Insufficient policy enforcement in DevTools
Reported by Google on 2026-03-25 [N/A][ 496298665 ] Low CVE-2026-8005: Insufficient validation of untrusted input in Cast
Severity: low
Red Hat
chromium-browser: Insufficient validation of untrusted input in Cast
vendor_redhat·2026-05-05·CVSS 4.3
CVE-2026-8005 [MEDIUM] CWE-346 chromium-browser: Insufficient validation of untrusted input in Cast
chromium-browser: Insufficient validation of untrusted input in Cast
An insufficient validation of untrusted input flaw was found in the Cast component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=496298665
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
VulDB
Google Chrome up to 147.0.7727.138 Cast cross-domain policy (ID 496298 / EUVD-2026-28113)
vuldb·2026-05-06·CVSS 4.3
CVE-2026-8005 [MEDIUM] Google Chrome up to 147.0.7727.138 Cast cross-domain policy (ID 496298 / EUVD-2026-28113)
A vulnerability categorized as problematic has been discovered in Google Chrome. The impacted element is an unknown function of the component Cast. The manipulation results in permissive cross-domain policy with untrusted domains.
This vulnerability was named CVE-2026-8005. The attack needs to be approached within the local network. There is no available exploit.
It is advisable to upgrade the affected component.
GHSA
GHSA-4p7v-xggp-73p4: Insufficient validation of untrusted input in Cast in Google Chrome prior to 148
ghsa_unreviewed·2026-05-06
CVE-2026-8005 [MEDIUM] CWE-20 GHSA-4p7v-xggp-73p4: Insufficient validation of untrusted input in Cast in Google Chrome prior to 148
Insufficient validation of untrusted input in Cast in Google Chrome prior to 148.0.7778.96 allowed an attacker on the local network segment to bypass same origin policy via malicious network traffic. (Chromium security severity: Low)
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - May 2026
blogs_rapid7·2026-05-13·CVSS 10.0
CVE-2026-41089 [CRITICAL] Patch Tuesday - May 2026
Microsoft is publishing 137 vulnerabilities on May 2026 Patch Tuesday . Microsoft is not aware of exploitation in the wild or public disclosure for any of these vulnerabilities. So far this month, Microsoft has provided patches to address 133 browser vulnerabilities, which are not included in the Patch Tuesday count above.
## Windows Netlogon: critical RCE
Anyone responsible for securing a domain controller should prioritize remediation of CVE-2026-41089 , which is a critical stack-based buffer overflow in Windows Netlogon with a CVSS v3 base score of 9.8. Exploitation leads to execution in the context of the Netlogon service, so that’s SYSTEM privileges on the domain controller. For most pentesters, that’s the point at which the customer report more or less writes itself. No privileges
Bugzilla
CVE-2026-8005 chromium-browser: Insufficient validation of untrusted input in Cast
bugzilla·2026-05-06·CVSS 4.3
CVE-2026-8005 [MEDIUM] CVE-2026-8005 chromium-browser: Insufficient validation of untrusted input in Cast
CVE-2026-8005 chromium-browser: Insufficient validation of untrusted input in Cast
Insufficient validation of untrusted input in Cast in Google Chrome prior to 148.0.7778.96 allowed an attacker on the local network segment to bypass same origin policy via malicious network traffic. (Chromium security severity: Low)
2026-05-06
Published