Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to malicious site
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ExploitServe crafted HTML page
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ExecutionTrigger flaw in Animation component
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ImpactLeak sensitive memory to attacker
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 use an affected Google Chrome build (prior to 155.0.8059.39) and to load an attacker-crafted HTML page in that browser - this user-interaction requirement (UI:R) is the primary limiting factor; there is no authentication requirement (PR:N) and no special non-default browser configuration is indicated. The flaw is reached through the browser's Animation rendering path, so it triggers against default Chrome configurations as soon as the malicious page is rendered, but it cannot be exploited without that victim-initiated page load. Impact is limited to disclosure of sensitive information (confidentiality only); it does not by itself modify data or crash the browser. |
| Impact | Signals are consistent and point to a genuine but moderate-priority issue. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, base 6.5) describes a network-reachable, low-complexity, unauthenticated flaw whose only real friction is required user interaction (UI:R) - the victim must load attacker-controlled content. Impact is confidentiality-only (C:H, I:N, A:N), matching the CWE-200 information-disclosure classification and the 'Information leak in Animation' description. Exploitation likelihood signals are LOW and aligned: EPSS is 0.18% (7th percentile), there is no CISA KEV listing, and no public exploit was identified in the provided data - so this is confirmed no public exploit identified at time of analysis, not active exploitation. Google rates it Medium severity internally, consistent with the memory-disclosure (not RCE) nature. Net: a real, patch-worthy browser vulnerability affecting an extremely widely deployed product, but currently a routine-patch priority rather than an emergency; its risk ceiling is bounded by the need for user interaction and the confidentiality-only impact. No conflicting signals were observed in the data. |
| Exploit ScenarioDerived | An attacker hosts a malicious web page containing crafted HTML/CSS that abuses the Animation component, then lures a Chrome user (versions before 155.0.8059.39) to visit it via a link, ad, or compromised site. When the page renders, the flaw leaks sensitive in-process memory contents (e.g., cross-origin data or memory layout) back to attacker-controlled script. No public exploit code was identified in the provided data, and success requires the victim to actually open the page (UI:R). |
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Alert meAnalysisAIv1 – Oct 07, 2026
Information disclosure in Google Chrome builds prior to 155.0.8059.39 lets an unauthenticated remote attacker leak sensitive information out of the browser through a crafted HTML page that the victim must load, exploiting the browser's Animation rendering path. The attack is limited by its user-interaction requirement (UI:R) and by the fact that impact is confidentiality-only - no data modification, no denial of service - which is reflected in the 6.5 CVSS score and the Medium Chromium severity rating. There is no public exploit identified at time of analysis and EPSS is 0.18% (7th percentile), indicating low near-term exploitation likelihood, but a vendor patch is available so the fix is straightforward to apply.
RemediationAI
Vendor-released patch: upgrade Google Chrome to version 155.0.8059.39 or later, distributed via the Stable channel update at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html; confirm the applied build through chrome://version or a fleet-management inventory query, since the fix requires a full browser restart and an open, un-restarted session remains on the vulnerable build. Chromium issue https://issues.chromium.org/issues/537107728 is restricted, so no workaround is documented by the vendor; until upgrades complete, reduce exposure by disabling or blocking untrusted web content that renders complex animations - for example forcing extensions or CSP-style filtering at a managed proxy, which breaks parts of legitimate sites and is not a reliable control because the defect is reachable from ordinary page rendering. Stronger compensating controls are remote browser isolation or running Chrome in a sandboxed/virtualized context that cannot reach sensitive local data, or restricting Chrome usage on high-value hosts to a curated allowlist of internal applications; each of these carries notable usability cost. Because the risk is confidentiality-only, no data-integrity remediation is required, but credentials or tokens potentially exposed by a leak should be rotated if compromise is suspected.
Affected VersionsENISA
Affected Packages
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 under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) and is rooted in Chrome's Animation rendering subsystem, the code path that drives CSS animations and the compositor-side animation pipeline inside the Blink/cc rendering stack. Per the assessed vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, the issue is remotely reachable over the network with low attack complexity and no authentication (PR:N), but it demands that the target render attacker-supplied HTML (UI:R) and it yields only a high-confidentiality impact with no integrity or availability effect. The affected package is identified as cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* and the ENISA EUVD entry (EUVD-2026-93755) lists affected builds as Chrome versions below 155.0.8059.39; the precise memory-safety or logic mechanism behind the leak was not disclosed in the available data, beyond Google's classification of the defect as an information leak in Animation, so the leak should be understood as an unintended exposure of browser-process data accessible to script rather than as a memory-corruption primitive.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Remotely reachable via a crafted web page (AV:N, AC:L, PR:N) but needs the victim to open it (UI:R); an information leak yields C:H with no integrity or availability impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Information leak in Animation in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
EUVD-2026-93755
GHSA-7fr6-g3gq-cpmm
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB