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Google Chrome CVE-2026-95371

| EUVDEUVD-2026-89124 MEDIUM
Missing Authorization (CWE-862)
2026-09-23 vendor:ubuntu GHSA-qgqg-94jv-j797
Medium
Disputed · 5.4 Vendor: vendor:ubuntu
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Lure victim to malicious web page
  2. Exploit
    Serve crafted content to Chrome
  3. Execution
    Trigger flaw in browser component
  4. Impact
    Achieve impact in browser context

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Prerequisites cannot be extracted precisely because the description and CVSS vector are absent. Based on the product being Google Chrome desktop, realistic exploitation would require a victim to browse to or render attacker-controlled web content in an unpatched stable-channel Chrome build; that user interaction is the primary limiting factor. Chrome's silent auto-update mechanism further limits exposure to installations that have not yet applied the September 2026 stable-channel update. The exact affected/fixed version range and the specific triggering feature or component are not disclosed in the provided data and must be confirmed against the linked Chrome Releases advisory.

Impact

Nearly all risk-scoring signals are absent for this CVE: no CVSS vector or score, no CWE, no EPSS probability, no CISA KEV listing, and no public POC. The only firm signals are (1) the sole reference is Google's Chrome Releases 'Stable Channel Update for Desktop' blog post (Sep-2026), which strongly identifies this as a Google Chrome desktop browser vulnerability fixed in a stable-channel security update, and (2) a vendor patch is available. Because Chrome is a browser, the historically dominant exploitation model is web-based: a victim visits or is redirected to a malicious page, so real-world exploitation typically requires user interaction (UI:R) and no prior authentication. Without a CVSS vector or CWE, the specific vulnerability class (memory corruption, type confusion, sandbox escape, UAF, etc.) and technical impact CANNOT be determined from the provided data and must be confirmed against the linked Chrome Releases advisory or the corresponding Chromium bug entry. There is no evidence of active exploitation: KEV is not set and no POC is referenced, so this should be treated as 'no public exploit identified at time of analysis' rather than a zero-day. Net: the affected product (Chrome) is ubiquitous, which raises the priority of patching, but the individual-CVE risk cannot be graded from this metadata alone - the missing description/CVSS is the key gap. Given Chrome's automatic-update mechanism, exposure windows are usually short for up-to-date installs.

Exploit ScenarioDerived

A user running an unpatched Chrome desktop stable build browses to an attacker-controlled or compromised web page, which serves content that triggers the flaw in the browser. Depending on the (undisclosed) vulnerability class, this could lead to renderer memory corruption, information disclosure, or code execution within the browser context. No public exploit code or active exploitation is indicated in the available data.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 24, 2026

Google Chrome desktop stable-channel builds are affected by a vulnerability that Google addressed in its September 2026 stable-channel release, with the specific triggering component, root cause, and severity not disclosed in the available intelligence. Realistic exploitation would require a victim to browse to or render attacker-controlled web content in a browser that has not yet applied the fix, making user interaction the primary limiting factor, while Chrome's silent auto-update mechanism confines exposure largely to installations that have not yet restarted or updated. There is no public exploit code identified at time of analysis and no CISA KEV listing, and with no CVSS vector, no CWE, and no EPSS probability available, the risk cannot be scored quantitatively from the supplied data.

RemediationAI

Apply the Chrome desktop stable-channel update referenced in Google's advisory (http://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0856730748.html), noting that the exact fixed version number is not present in the supplied data and must be confirmed against that advisory before it is cited internally; the patch status is best described as patch available per vendor advisory, with no exact version independently confirmed here. In practice, ensure Chrome's built-in updater is unobstructed and fully restart the browser, since pending updates commonly remain unapplied until all Chrome processes are closed; verify the running build via chrome://version. Ubuntu-managed systems should confirm whether the fix is delivered through Google's update channel or through the distribution's packaging, and administrators should reconcile the installed version against the advisory's fixed build rather than assuming auto-update completed. No specific feature-disable, port-blocking, or endpoint-restriction workaround can be recommended responsibly, because the affected component, attack vector, and prerequisite conditions are undisclosed; the only defensible compensating measures are enforcing timely browser updates and reducing exposure to untrusted web content, each of which carries usability trade-offs and should be treated as secondary to patching.

Affected VersionsENISA

Chrome 154.0.8037.57 <154.0.8037.57

Affected Packages

euvd chrome fix: 154.0.8037.57

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The only substantive technical lead in the provided intelligence is the reference to Google's official Chrome Releases blog entry for a September 2026 stable-channel desktop update, which is the canonical vehicle Google uses to bundle multiple Chromium security fixes along with severity ratings and linked bug identifiers. No CWE is supplied, so the root-cause class (for example memory-safety corruption, type confusion, use-after-free, insufficient validation, or a sandbox/privilege boundary defect) cannot be established from this data set; correspondingly, no CPE strings were provided, so the exact affected product/version enumeration and platform breakdown (Windows, macOS, Linux) remain unconfirmed. Because Chrome is a multi-process browser - content rendered by sandboxed renderer processes behind a broker and site-isolation boundary - the practical impact depends heavily on which component is affected and whether a renderer compromise can be chained to escape the sandbox, information that is not present here. The report provenance is vendor:ubuntu, which suggests downstream distribution or packaging tracking alongside Google's upstream advisory, and means Ubuntu-channel users may need to confirm whether their fix arrives via Google's own update service or through the distribution's packaging. All root-cause, affected-range, and severity conclusions should be deferred to the linked Chrome Releases advisory rather than inferred.

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Severity by source

Sources disagree (Medium–Critical)
Vendor (vendor:ubuntu) PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
SUSE CRITICAL

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: vendor:ubuntu

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

Lifecycle Timeline

2
CVSS changed
Sep 29, 2026 - 19:22 NVD
5.4 (MEDIUM)
CVE Published
Sep 23, 2026 - 00:00 cve.org
MEDIUM

DescriptionCVE.org

[Unknown description]

Threat Intelligence Overview

EPSS Score
0.2%
Top 90% exploitable
Prevalence
Ubiquitous
Google Chrome desktop is among the most widely deployed browsers worldwide
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
High

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Vendor StatusVendor

SUSE

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

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