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Google Chrome CVE-2026-110145

| EUVDEUVD-2026-100642 HIGH
Use After Free (CWE-416)
2026-10-13 chrome-cve-admin@google.com GHSA-fgjj-mfh4-8w2p
8.3
CVSS 3.1 · Vendor: google
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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. Delivery
    Exploit renderer to gain code execution
  3. Exploit
    Trigger use-after-free in Passwords component
  4. Execution
    Win race to escape Chrome sandbox
  5. Impact
    Execute arbitrary code on host

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

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

Exploitation Conditions

Exploitation requires that the attacker has ALREADY compromised Chrome's renderer process (a prerequisite second-stage bug or exploit chain is needed - this is not reachable from a single unprivileged visit alone), after which a crafted HTML page triggers the use-after-free in the Passwords component to execute code outside the sandbox. Affected: Google Chrome versions prior to 155.0.8059.79 (desktop stable channel). Limiting factors: the dependency on a prior renderer compromise, the high attack complexity (AC:H, reflecting a use-after-free race that must be won), and required user interaction (UI:R - the victim must load the malicious page). These factors substantially raise the bar beyond the raw 8.3 score; default configurations are affected only in the sense that any un-patched Chrome install is vulnerable once the renderer is compromised.

Impact

Signals conflict in a way that lowers real-world urgency relative to the 8.3 CVSS score. The CVSS vector (AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H) scores this as a high-severity network RCE with scope change, but the description makes clear this is a second-stage sandbox-escape bug: the attacker must 'have compromised the renderer process' first, so it is not independently exploitable from a single crafted page. CISA SSVC reinforces the lower practical priority - Exploitation: none (no observed activity), Automatable: no (consistent with the AC:H / UI:R race-and-chain requirement), with Technical Impact: total (consistent with C:H/I:H/A:H full code execution outside the sandbox). No EPSS score, no CISA KEV listing, and no POC were provided, so there is no public exploit identified at time of analysis. Net assessment: a genuinely serious memory-corruption bug in a ubiquitous product that warrants prompt patching, but current evidence points to no active exploitation and a non-trivial exploitation barrier (requires chaining with a separate renderer compromise), making it a patch-on-cycle High rather than an emergency-grade threat. MISSING DATA: EPSS probability and POC status are absent and cannot be inferred.

Exploit ScenarioDerived

An attacker who has already achieved code execution inside Chrome's sandboxed renderer (via a separate renderer exploit) lures the victim to a crafted HTML page that triggers a use-after-free in the Passwords component. By grooming the freed object and winning the race, the attacker escapes the renderer sandbox and executes arbitrary code in the higher-privileged browser process on the host. No public proof-of-concept was provided, and the attack requires a pre-existing renderer compromise plus a successful race (CVSS AC:H).

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 14, 2026

Use-after-free in Google Chrome's Passwords component (desktop stable builds prior to 155.0.8059.79) allows an attacker who has already compromised the renderer process to execute arbitrary code outside the browser sandbox by convincing a victim to load a crafted HTML page. The 8.3 CVSS score reflects high confidentiality, integrity, and availability impact with a changed scope, but it is unauthenticated on paper (PR:N) only in the sense that no credentials are checked - the real gate is the prerequisite renderer compromise plus a hard-to-win use-after-free race (AC:H) and required user interaction (UI:R). No public exploit code and no confirmed active exploitation (not in CISA KEV) were identified at time of analysis, and Google has already released a fixed build, so the signals point to lower real-world urgency than the raw score suggests.

RemediationAI

Apply the vendor-released patch by upgrading Google Chrome to 155.0.8059.79 or later; use the built-in updater (chrome://settings/help) and fully restart the browser so the new binary is loaded, since running renderers stay on the old version until restart. Enterprise administrators should confirm the minimum version through their Chrome Browser Cloud Management or update-policy settings and verify fleet-wide rollout, and users of Chromium-derived browsers should apply their vendor's equivalent build once available. No configuration switch or flag disables this code path, so the primary control is version update; because exploitation presupposes a compromised renderer, secondary hardening should target the first stage - keep Site Isolation enabled (default, do not disable via --disable-site-isolation-trials or enterprise overrides), avoid disabling the sandbox or JIT hardening flags, and reduce exposure to untrusted HTML from unknown origins. Disabling JavaScript would functionally block the crafted-page trigger but breaks most modern sites and is not a realistic fleet-wide measure; the trade-off is not justified given a patch exists. No vendor workaround is documented, and absence of a workaround should not be read as absence of a fix.

Affected VersionsENISA

Chrome 155.0.8059.79 <155.0.8059.79

Affected Packages

euvd chrome fix: 155.0.8059.79

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 defect is a CWE-416 use-after-free in the Passwords component of Chromium - the subsystem that handles the built-in password manager, credential storage/autofill, and related IPC between the renderer and the browser process. A use-after-free occurs when the component releases a heap object (a credential-related structure or its backing buffer) but later dereferences a stale pointer to it; if the attacker can reallocate that freed memory with controlled data before the dangling reference is used, the dereference can redirect execution and yield an arbitrary write or call primitive. Because the Passwords code accepts data originating from the renderer while running with browser-process privileges, this primitive is a sandbox-escape vector, which is why the CVSS vector carries S:C (scope changed) and why the Chromium severity rating is High. Exploitation is inherently two-stage: a first bug or exploit chain must already give the attacker control of the renderer process, and only then does a crafted HTML page trigger the memory-corruption path; the AC:H rating reflects the timing/race reliability problem of winning the use-after-free. Public tagging (RCE, Memory Corruption, Use After Free, Denial Of Service) is consistent with this class, and no CPE strings were supplied, so the affected surface is best identified by product version rather than CPE.

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Severity by source

Vendor (google) PRIMARY 8.3 HIGH
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
vuln.today AI 8.3 HIGH

Crafted page is network-delivered (AV:N) and victim must load it (UI:R); exploiting the use-after-free race and needing a pre-compromised renderer give AC:H; escaping the sandbox to the host is S:C with full code execution (C/I/A:H).

3.1 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat 8.8 HIGH

Primary rating from Vendor (google).

CVSS VectorVendor: google

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

Lifecycle Timeline

3
CVSS changed
Oct 14, 2026 - 14:22 NVD
8.3 (None) 8.3 (HIGH)
CVE Published
Oct 13, 2026 - 22:17 cve.org
UNKNOWN (no severity yet)
CVE Published
Oct 13, 2026 - 22:17 cve.org
HIGH 8.3

DescriptionCVE.org

Use after free in Passwords in Google Chrome prior to 155.0.8059.79 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Executive ViewAI

Why It Matters

Google Chrome desktop stable builds prior to 155.0.8059.79 contain a high-severity vulnerability that could allow an attacker who has already compromised a browser tab to escape the browser sandbox and execute malicious code on affected systems. Exploitation requires a difficult race condition and user interaction, and no public exploit identified at time of analysis. A vendor patch is available, and updating Chrome is critical to reduce organizational risk.

Business Impact: Medium
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Ubiquitous
Google Chrome is the dominant browser across nearly all environments
Data Quality
5 sources
Confidence: Medium

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
Total

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Vendor StatusVendor

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