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Google Chrome CVE-2026-106334

| EUVDEUVD-2026-93647 HIGH
Information Exposure (CWE-200)
2026-10-06 Chrome GHSA-65r5-q5rg-c2gr
High
Disputed · 8.8 Vendor: Chrome
View

Attack ChainAIDerived

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

  1. Access
    Deliver crafted HTML page via social engineering
  2. Exploit
    Victim opens page in vulnerable Chrome
  3. Execution
    Trigger info leak in Payments component
  4. Impact
    Exfiltrate sensitive information

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

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

Exploitation Conditions

Exploitation requires the victim to actively open an attacker-crafted HTML page (UI:R) and specifically targets the Payments component of Chrome, so the user must be lured via social engineering into visiting malicious content while running a build prior to 155.0.8059.39. There is no authentication requirement (PR:N) and the attack is network-delivered, but the mandatory user interaction and social-engineering dependency are the primary limiting factors; no non-default configuration is indicated. Realistic impact is confined to disclosure of sensitive information handled by the Payments feature, not integrity or availability loss.

Impact

Signals conflict sharply and must be reconciled before prioritization. The NVD CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, base 8.8) implies full compromise of confidentiality, integrity AND availability, yet the description characterizes this strictly as an information leak in the Payments component (CWE-200) and Google's own Chromium security team rates the severity 'Low'. The I:H/A:H impacts in the NVD vector are almost certainly inflated boilerplate - an information-disclosure flaw does not plausibly grant integrity or availability impact - so the 8.8 should be treated with skepticism and the vendor's 'Low' rating given substantial weight. No EPSS score was supplied, and there is no CISA KEV listing and no public proof-of-concept, so there is no evidence of active or imminent exploitation. Exploitation also requires user interaction via social engineering (UI:R), which further lowers real-world risk. Net assessment: despite the headline 8.8, this is a low-priority, patch-in-normal-cycle issue - a high-CVSS-but-low-real-risk case driven by Chrome's near-universal footprint rather than by severity or exploitability.

Exploit ScenarioDerived

An attacker crafts a malicious HTML page and uses social engineering (e.g., a phishing lure or deceptive link) to persuade a victim to open it in a vulnerable Chrome build, whereupon flawed handling in the Payments component leaks sensitive information to the attacker. No public exploit code was identified, and successful exploitation depends on the victim being tricked into the required interaction. Impact is limited to disclosure of sensitive data rather than code execution.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 06, 2026

A low-severity information disclosure exists in the Payments component of Google Chrome, where a remote attacker using a crafted HTML page and social-engineering lures could cause the browser to leak sensitive information handled by the payments/autofill feature in builds prior to 155.0.8059.39. Exploitation is not automatic: the victim must be convinced to open the attacker's page while running a vulnerable build, and the assessed vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) confines realistic impact to confidentiality loss with no integrity or availability effect. There is no confirmed active exploitation (not in CISA KEV) and no public exploit identified at time of analysis; a vendor patch is available in Chrome 155.0.8059.39. Note that the supplied CVSS base score of 8.8 (C:H/I:H/A:H) is inconsistent with both the Chromium severity rating of Low and the independent assessment, and should not be used for prioritization without reconciliation.

RemediationAI

Vendor-released patch: upgrade Google Chrome to 155.0.8059.39 or later, distributed through the Chrome stable channel update referenced at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html; users can force the update from chrome://settings/help and confirm the version string, and administrators should push the fixed build through their endpoint management tooling. Chromium-derived browsers should be updated once their maintainers rebase onto the 155.0.8059.39-equivalent milestone, and the upstream technical detail is tracked at https://issues.chromium.org/issues/556229780. Where immediate upgrade is not possible, reduce exposure by disabling payment autofill so the vulnerable code path holds no payment data to leak: set the enterprise policy AutofillCreditCardEnabled=0 (or have users clear and stop saving cards at chrome://settings/payments) - the trade-off is loss of checkout convenience and repeated manual entry of card details. Because exploitation requires the user to open a crafted page, blocking untrusted/unknown sites through enterprise URL filtering and reinforcing anti-phishing awareness lowers the practical attack success rate, though these are compensating controls only and not a substitute for patching.

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 flaw is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) and lives in Chrome's Payments subsystem, the browser component responsible for storing and autofilling saved payment instruments and related checkout data. The attack surface is a crafted HTML page rendered by the browser: because the vector requires UI:R, the attacker cannot trigger the leak without a user navigating to attacker-controlled content, making phishing or other social-engineering delivery the practical prerequisite. CPE data (cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*) indicates the advisory covers all Chrome builds below the fixed release rather than a single platform branch, consistent with a shared Blink/Chromium Payments implementation. The two severity signals diverge sharply: the upstream Chromium rating is Low, and the independent assessment scores the issue as confidentiality-only (C:L/I:N/A:N), while the provided 8.8 vector claims high confidentiality, integrity, and availability impact. The independent assessment is authoritative here, so the root-cause class remains an information exposure regression in payment-data handling rather than a memory-corruption or code-execution primitive.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Sources disagree (Low–High)
Vendor (Chrome) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 4.3 MEDIUM

Network-delivered crafted page with no auth but requiring user interaction (AV:N/PR:N/UI:R); scored as a confidentiality-only information leak (C:L, I:N/A:N) consistent with Chromium's 'Low' rating.

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

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
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
CVSS changed
Oct 06, 2026 - 21:22 NVD
8.8 (HIGH)
Patch available
Oct 06, 2026 - 20:04 EUVD
CVE Published
Oct 06, 2026 - 18:41 cve.org
HIGH 8.8
CVE Published
Oct 06, 2026 - 18:41 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Information leak in Payments in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: Low)

Executive ViewAI

Why It Matters

Google Chrome builds prior to 155.0.8059.39 contain a payments/autofill information-disclosure flaw that a remote, unauthenticated attacker can attempt only by convincing a user to open a crafted page; no public exploit identified at time of analysis. The practical exposure is limited to confidentiality loss for users who interact with the lure, but because Chrome is widely deployed and payment/autofill data is sensitive, unpatched endpoints represent a manageable privacy, compliance, and reputational risk. Leadership should prioritize rapid patch verification rather than emergency incident response, noting that the supplied CVSS 8.8 conflicts with the vendor's Low rating and the described confidentiality-only impact.

Business Impact: Medium
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Ubiquitous
Google Chrome is the dominant browser across consumer and enterprise endpoints
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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Medium
Technical Impact
Partial

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
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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