Skip to main content

Google Chrome CVE-2026-17853

| EUVDEUVD-2026-50602 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-07-30 Chrome GHSA-2gvw-rh95-856r
Medium
Disputed · 6.1 Vendor: Chrome
Share

Severity by source

Sources disagree (Medium–Critical)
Vendor (Chrome) PRIMARY
6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
vuln.today AI
4.7 MEDIUM

AC:H reflects the hard prerequisite of a compromised renderer process; all other metrics align with network delivery, scope change to DevTools, and limited XSS impact.

3.1 AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
SUSE
CRITICAL
qualitative
Red Hat
8.9 MEDIUM
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorVendor: Chrome

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

5
Analysis Generated
Jul 31, 2026 - 19:35 vuln.today
CVSS changed
Jul 31, 2026 - 19:22 NVD
6.1 (MEDIUM)
Patch available
Jul 30, 2026 - 02:02 EUVD
CVE Published
Jul 30, 2026 - 00:19 cve.org
MEDIUM 6.1
CVE Published
Jul 30, 2026 - 00:19 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Inappropriate implementation in DevTools in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to inject scripts or HTML into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Script and HTML injection into privileged DevTools pages in Google Chrome prior to 151.0.7922.72 is enabled when an attacker has already compromised the renderer process, exploiting an inappropriate implementation in DevTools (CWE-79). The vulnerability requires chaining with a prior renderer exploit: alone it cannot be triggered by a remote unauthenticated attacker without that precondition, making it a sandbox-escape amplifier rather than a standalone remote attack. EPSS is 0.18% (8th percentile), no public exploit has been identified, and it does not appear in CISA KEV, reflecting low observed exploitation pressure despite the Medium CVSS rating.

Technical ContextAI

Google Chrome's DevTools interface runs in a privileged browsing context with elevated access to internal Chrome APIs and debugging capabilities. The underlying flaw is CWE-79 (Improper Neutralization of Input During Web Page Generation / Cross-Site Scripting): DevTools fails to properly sanitize or isolate content injected from the renderer process, allowing attacker-controlled scripts or HTML to execute within the privileged DevTools page. The renderer process in Chrome is normally sandboxed, but a prior renderer compromise - via a separate vulnerability - can be leveraged to supply crafted content that this DevTools implementation incorrectly trusts and renders. The affected CPE is cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, covering all Chrome stable builds prior to 151.0.7922.72 across platforms. Chromium classified this as Medium severity, consistent with the scope-changing but limited-impact nature of privileged-page XSS.

RemediationAI

The primary fix is to update Google Chrome to version 151.0.7922.72 or later, which is available via Chrome's built-in auto-update mechanism or the vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. This patch resolves the inappropriate DevTools implementation that permitted script injection from a compromised renderer. Because exploitation requires an already-compromised renderer process, organizations that cannot immediately deploy the update should prioritize mitigating renderer-level vulnerabilities through Chrome's existing sandbox hardening features - enabling strict site isolation (--site-per-process, enabled by default in modern Chrome) and restricting DevTools access to trusted administrators only via enterprise policy (DevToolsAvailability GPO setting). Restricting DevTools access eliminates the privileged injection surface entirely, though it prevents legitimate developer use. No significant side effects are expected from the patch itself.

Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Package Hub 15 SP7 Fixed
openSUSE Leap 16.0 Fixed
SUSE Package Hub 15 SP7 Affected

Share

CVE-2026-17853 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy