CVE-2026-7963
published 2026-05-06CVE-2026-7963: Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to…
PriorityP343high8.3CVSS 3.1
AVNACHPRNUIRSCCHIHAH
EPSS
0.22%
12.9th percentile
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
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
nvdv3.18.3HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
cvelistv5v3.18.3HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
vendor_redhat8.0MEDIUM
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GHSA
GHSA-2xwv-mhjq-356g: Inappropriate implementation in ServiceWorker in Google Chrome prior to 148
ghsa_unreviewed·2026-05-06
CVE-2026-7963 [HIGH] CWE-693 GHSA-2xwv-mhjq-356g: Inappropriate implementation in ServiceWorker in Google Chrome prior to 148
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
CVEList
CVE-2026-7963: Inappropriate implementation in ServiceWorker in Google Chrome prior to 148
cvelistv5·2026-05-06·CVSS 8.3
CVE-2026-7963 [HIGH] CVE-2026-7963: Inappropriate implementation in ServiceWorker in Google Chrome prior to 148
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
VulDB
Google Chrome up to 147.0.7727.138 ServiceWorker sandbox
vuldb·2026-05-06
CVE-2026-7963 [CRITICAL] Google Chrome up to 147.0.7727.138 ServiceWorker sandbox
A vulnerability, which was classified as critical, has been found in Google Chrome. Affected is an unknown function of the component ServiceWorker. Performing a manipulation results in sandbox issue.
This vulnerability is known as CVE-2026-7963. Remote exploitation of the attack is possible. No exploit is available.
It is advisable to upgrade the affected component.
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-7963
vendor_chrome·2026-05-19
CVE-2026-7963 Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-7963
Stable Channel Update for ChromeOS / ChromeOS Flex
CVE-2026-7963
Chrome
Stable Channel Update for Desktop: CVE-2026-7961
vendor_chrome·2026-05-05
CVE-2026-7961 [MEDIUM] Stable Channel Update for Desktop: CVE-2026-7961
Stable Channel Update for Desktop
CVE-2026-7961: Insufficient validation of untrusted input in Permissions. Reported by Google on 2026-03-27 [N/A][ 497081987 ] Medium CVE-2026-7962: Insufficient policy enforcement in DirectSockets
Reported by Google on 2026-03-28 [N/A][ 497250399 ] Medium CVE-2026-7963: Inappropriate implementation in ServiceWorker
Severity: medium
Red Hat
chromium-browser: Inappropriate implementation in ServiceWorker
vendor_redhat·2026-05-05·CVSS 8.0
CVE-2026-7963 [MEDIUM] CWE-358 chromium-browser: Inappropriate implementation in ServiceWorker
chromium-browser: Inappropriate implementation in ServiceWorker
An inappropriate implementation flaw was found in the ServiceWorker component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=497250399
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-2026-7963 chromium-browser: Inappropriate implementation in ServiceWorker
bugzilla·2026-05-06
CVE-2026-7963 [MEDIUM] CVE-2026-7963 chromium-browser: Inappropriate implementation in ServiceWorker
CVE-2026-7963 chromium-browser: Inappropriate implementation in ServiceWorker
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
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
2026-05-06
Published