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Google Chrome EUVDEUVD-2026-50620

| CVE-2026-17871 MEDIUM
Origin Validation Error (CWE-346)
2026-07-30 Chrome GHSA-wvwr-3hfj-vc2v
Medium
Disputed · 4.3 Vendor: Chrome
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Severity by source

Sources disagree (Medium–Critical)
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

Network-delivered via crafted page (AV:N); mandatory specific UI gestures required (UI:R); impact limited to low cross-origin data disclosure with no integrity or availability effect.

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
SUSE
CRITICAL
qualitative
Red Hat
6.5 MEDIUM
qualitative

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

5
Analysis Generated
Jul 30, 2026 - 14:53 vuln.today
CVSS changed
Jul 30, 2026 - 14:37 NVD
4.3 (MEDIUM)
Patch available
Jul 30, 2026 - 02:02 EUVD
CVE Published
Jul 30, 2026 - 00:19 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 30, 2026 - 00:19 cve.org
MEDIUM 4.3

DescriptionCVE.org

Inappropriate implementation in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Cross-origin data leakage in Google Chrome's Passwords component (versions prior to 151.0.7922.72) stems from an inappropriate implementation classified under CWE-346 (Origin Validation Error), enabling a remote attacker to exfiltrate limited cross-origin credential-related data via a crafted HTML page. Exploitation requires the target user to perform specific, undisclosed UI gestures - such as interacting with a password field or autofill prompt - on the attacker's page, limiting mass-scale automation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Host crafted HTML page on attacker server
Delivery
Lure target Chrome user to visit page
Exploit
Induce user to perform specific UI gestures
Execution
Chrome Passwords component violates origin boundary
Persist
Cross-origin credential data leaks to attacker page
Impact
Attacker reads exfiltrated data

Vulnerability AssessmentAI

Exploitation Exploitation requires three simultaneous conditions: (1) the target must be running Google Chrome prior to version 151.0.7922.72; (2) the attacker must successfully social-engineer the user into visiting a crafted HTML page; and (3) the user must perform 'specific UI gestures' on that page - the exact gestures are undisclosed but the CVSS UI:R metric confirms they are mandatory and non-trivial, ruling out passive drive-by exploitation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.3 Medium score is consistent with the limited impact profile: C:L (low confidentiality), I:N, A:N, S:U. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a malicious HTML page designed to trigger Chrome's Passwords component via user UI interactions - for example, a fake login form that prompts the user to click or interact with a field, inadvertently invoking the autofill/password-suggestion mechanism. The origin-validation flaw causes Chrome to expose cross-origin credential-related data back to the attacker's page JavaScript, which the attacker can then exfiltrate. …
Remediation Update Google Chrome to version 151.0.7922.72 or later, as released in the stable channel update documented at http://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

Vendor StatusVendor

SUSE

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

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EUVD-2026-50620 vulnerability details – vuln.today

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