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Google Chrome CVE-2026-106325

| EUVDEUVD-2026-93644 MEDIUM
Use of Incorrectly-Resolved Name or Reference (CWE-706)
2026-10-06 Chrome GHSA-6xrr-w4f6-77vm
4.3
CVSS 3.1 · Vendor: Chrome
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Attack ChainAIDerived

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

  1. Access
    Lure victim to crafted HTML page
  2. Exploit
    Page triggers incorrect reference resolution in Core
  3. Execution
    Read cross-origin data
  4. Impact
    Exfiltrate leaked cross-origin data to attacker

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Incorrectly specified target
Exploitation Conditions

Exploitation requires the victim to actively visit an attacker-controlled or compromised web page containing crafted HTML (UI:R), reached via social engineering such as phishing or a malicious link - there is no fully silent drive-by path described. No authentication is required (PR:N) and the attack works against standard Chrome installations prior to 155.0.8059.39 with no special configuration noted. The key limiting factors are the mandatory user interaction and the low technical impact: only a cross-origin data leak (confidentiality), with no code execution, integrity, or availability effect.

Impact

This is a genuinely low-priority issue despite being network-reachable. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N, base 4.3) shows remote, unauthenticated reach with low attack complexity, but exploitation hinges on user interaction (UI:R) and yields only limited confidentiality impact (C:L) with no integrity or availability impact. All corroborating signals point the same direction: Google/Chromium rated the security severity 'Low', CISA's SSVC framework records Exploitation: none, Automatable: no, and Technical Impact: partial. No EPSS score was supplied, the CVE is not in CISA KEV, and no public exploit code was referenced - there is no public exploit identified at time of analysis. The signals are consistent rather than conflicting: a low-severity, interaction-dependent cross-origin information leak that is not automatable. Note that EPSS data is missing from the input, so the quantitative exploitation-probability dimension could not be factored in; however, given the UI requirement and 'none' exploitation status, widespread opportunistic exploitation is unlikely.

Exploit ScenarioDerived

An attacker crafts a malicious HTML page that abuses incorrect reference resolution in Chrome's Core and uses social engineering (e.g., a phishing link or malicious ad) to lure a victim into visiting it. When the page loads, it leaks limited data belonging to another origin that the victim's browser has access to. No public proof-of-concept or exploit code is referenced 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 – Oct 06, 2026

Cross-origin data leakage in Google Chrome before 155.0.8059.39 stems from incorrect reference resolution in the browser's Core component, allowing a remote attacker to read data belonging to another origin through a crafted HTML page. Exploitation is not silent: it requires the victim to visit an attacker-controlled or compromised page (UI:R), typically reached via phishing or a malicious link, and no privileges are needed on the target (PR:N). The impact is limited to confidentiality (C:L) with no memory corruption, code execution, integrity, or availability effect, and no public exploit has been identified at time of analysis - this is a genuinely low-priority issue despite being network-reachable.

RemediationAI

Vendor-released patch: Google Chrome 155.0.8059.39 - upgrade to that build or later via the stable channel (chrome://settings/help or the enterprise update mechanism), and verify the reported version after restarting all browser processes. The fix is documented in the Chrome release advisory at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html. No server-side workaround fully closes the issue because the flaw is in client-side reference resolution; practical compensating controls are browser hardening and user-side measures, each with trade-offs: enable Safe Browsing enhanced protection and phishing-resistant email/web filtering to reduce the chance a user reaches a crafted page (does not eliminate the flaw and may block legitimate content), restrict high-value internal web apps to an allow-listed set of origins and enforce strict CORS/COOP/COEP and SameSite policy on sensitive services to limit what a cross-origin leak can reach (may break embedded third-party widgets), and keep browser extensions and Enterprise policies such as URL block-listing in place (adds administrative overhead). If patching must be delayed, treat the issue as low urgency given the mandatory user interaction and confidentiality-only impact, but prioritize the upgrade on endpoints where a browser session carries access to sensitive multi-tenant or internal data.

Affected VersionsENISA

Chrome 155.0.8059.39 <155.0.8059.39

Affected Packages

euvd chrome fix: 155.0.8059.39

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 root cause is CWE-706, Use of Incorrectly-Resolved Name or Reference, mapped to Chrome's Core subsystem. Reference resolution governs how the browser maps names, URLs, or other identifiers to the correct internal object or origin; when this mapping is done incorrectly, a crafted HTML document can cause one origin to resolve a reference in a way that exposes data belonging to a different origin. Such logic errors are distinct from memory-safety bugs: they do not grant arbitrary code execution and are confined to information disclosure, which is why the severity is rated Low by Chromium and CVSS 4.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N). The affected package is tracked as CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* with all releases prior to 155.0.8059.39 vulnerable, and the issue is documented in the Chromium tracker (issue 556211265) and the Chrome stable channel advisory.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (Chrome) PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
vuln.today AI 4.3 MEDIUM

Remote crafted page with no auth (AV:N/PR:N) but requires the victim to visit it (UI:R); only a limited cross-origin confidentiality leak, so C:L and I:N/A:N.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Red Hat 4.3 LOW

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

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

Lifecycle Timeline

4
CVSS changed
Oct 06, 2026 - 22:22 NVD
4.3 (None) 4.3 (MEDIUM)
Patch available
Oct 06, 2026 - 20:04 EUVD
CVE Published
Oct 06, 2026 - 18:41 cve.org
MEDIUM 4.3
CVE Published
Oct 06, 2026 - 18:41 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect reference resolution in Core in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Threat Intelligence Overview

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

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
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
High
Technical Impact
Partial

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Vendor StatusVendor

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