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Chrome for iOS EUVDEUVD-2026-50591

| CVE-2026-17842 MEDIUM
Origin Validation Error (CWE-346)
2026-07-30 Chrome GHSA-8737-76mx-jgwh
Medium
Disputed · 6.5 Vendor: Chrome
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Severity by source

Sources disagree (Medium–Critical)
Vendor (Chrome) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
vuln.today AI
6.5 MEDIUM

Network-delivered via crafted page; no privileges needed; mandatory user gesture interaction (UI:R); integrity high for SOP bypass; no confidentiality or availability impact evident.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
SUSE
CRITICAL
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:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

5
Analysis Generated
Jul 31, 2026 - 16:39 vuln.today
CVSS changed
Jul 31, 2026 - 16:22 NVD
6.5 (MEDIUM)
Patch available
Jul 30, 2026 - 02:02 EUVD
CVE Published
Jul 30, 2026 - 00:19 cve.org
MEDIUM 6.5
CVE Published
Jul 30, 2026 - 00:19 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Same-origin policy bypass in Google Chrome for iOS prior to 151.0.7922.72 enables a remote attacker to violate cross-origin isolation by luring a user into performing specific UI gestures on a crafted HTML page. The flaw stems from CWE-346 (Origin Validation Error) in an iOS-specific Chrome implementation, granting unauthorized write-level access to cross-origin content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Deliver crafted HTML page to iOS Chrome user
Delivery
Socially engineer specific UI gestures
Exploit
Trigger origin validation flaw
Execution
Bypass same-origin policy
Impact
Manipulate or access cross-origin content

Vulnerability AssessmentAI

Exploitation Exploitation requires that the victim is running Google Chrome on an iOS device at a version prior to 151.0.7922.72 and that an attacker can convince the user to perform specific UI gestures (such as taps or swipes) on a crafted HTML page-this is the central social-engineering prerequisite. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 6.5 (Medium) is consistent with the vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N: the attack is network-delivered, low complexity, requires no authentication, but critically depends on the victim performing specific UI gestures (UI:R), which meaningfully reduces automated exploitability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker hosts a crafted HTML page and distributes it via phishing, malvertising, or a compromised site, then socially engineers an iOS Chrome user into performing a sequence of UI gestures (e.g., tapping or swiping a disguised interactive element). These gestures trigger the origin validation flaw, allowing the attacker's page to bypass SOP and interact with or modify content from a different origin loaded in the same browser session-such as an authenticated banking or webmail page open in another tab. …
Remediation Update Google Chrome on iOS to version 151.0.7922.72 or later via the Apple App Store; this is the vendor-released patch confirmed by the Chrome stable channel advisory at http://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. … Detailed patch versions, workarounds, and compensating controls in full report.

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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-2026-50591 vulnerability details – vuln.today

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