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Chrome for iOS CVE-2026-78981

| EUVDEUVD-2026-66081 MEDIUM
Information Exposure (CWE-200)
2026-08-25 Chrome GHSA-h7p7-qfhv-ghrr
6.5
CVSS 3.1 · Vendor: Chrome
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Severity by source

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

Description specifies local attacker via local program (AV:L); no elevated privileges required for the co-resident app; confidentiality-only impact with no integrity or availability loss.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

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

Lifecycle Timeline

4
Analysis Generated
Aug 26, 2026 - 21:36 vuln.today
CVSS changed
Aug 26, 2026 - 19:23 NVD
6.5 (MEDIUM)
CVE Published
Aug 25, 2026 - 20:10 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 25, 2026 - 20:10 cve.org
MEDIUM 6.5

DescriptionCVE.org

Information leak in Mobile in Google Chrome on on iOS prior to 152.0.7977.65 allowed a local attacker to potentially obtain sensitive information via a local program. (Chromium security severity: Low)

AnalysisAI

Information disclosure in Google Chrome's Mobile component on iOS exposes sensitive data to local attackers operating via a local program, affecting all Chrome for iOS versions prior to 152.0.7977.65. The vulnerability is classified CWE-200 (Exposure of Sensitive Information) and carries a Chromium internal severity of Low, which aligns with SSVC's assessment of partial technical impact and non-automatable exploitation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Install malicious app on target iOS device
Exploit
Launch local program alongside Chrome Mobile
Execution
Access sensitive data exposed by Chrome Mobile subsystem
Impact
Exfiltrate collected information

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to have a program executing locally on the target iOS device, meaning a malicious application must already be installed and running on the same device as the vulnerable Chrome for iOS instance. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Conflicting signals require explicit attention. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An adversary distributes a malicious iOS application - potentially through side-loading or a compromised enterprise distribution profile - that, once installed alongside Chrome for iOS on the victim's device, runs a local program to read sensitive information inadvertently exposed by Chrome's Mobile subsystem. The attacker gains access to the leaked data (browsing artifacts, credentials, or session tokens, depending on what Chrome fails to protect) without any network interaction. …
Remediation Vendor-released patch: Chrome for iOS 152.0.7977.65. … Detailed patch versions, workarounds, and compensating controls in full report.

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

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CVE-2026-78981 vulnerability details – vuln.today

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