CVE-2026-28861 | Apple Safari/iOS/iPadOS/macOS/visionOS up to 26.3 Script Message state issue

VDB-352958 · CVE-2026-28861 · GCVE-0-2026-28861 APPLE SAFARI/IOS/IPADOS/MACOS/VISIONOS UP TO 26.3 SCRIPT MESSAGE STATE ISSUE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.0 $5k-$25k 0.57+ Summaryinfo A vulnerability was found in Apple Safari, iOS, iPadOS, macOS and visionOS up to 26.3 and classified as critical. Affected by this issue is some unknown functionality of the component Script Message Handler. Such manipulation leads to state issue. This vulnerability is listed as CVE-2026-28861. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in Apple Safari, iOS, iPadOS, macOS and visionOS up to 26.3 and classified as critical. Affected by this issue is an unknown code of the component Script Message Handler. The manipulation with an unknown input leads to a state issue vulnerability. Using CWE to declare the problem leads to CWE-371. Impacted is confidentiality, integrity, and availability. CVE summarizes: A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins. The advisory is available at support.apple.com. This vulnerability is handled as CVE-2026-28861 since 03/03/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 03/25/2026). Upgrading to version 26.4 eliminates this vulnerability. Productinfo Type Web Browser Vendor Apple Name iOS iPadOS macOS Safari visionOS Version 26.0 26.1 26.2 26.3 License commercial Website Vendor: https://www.apple.com/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.0 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: State issue CWE: CWE-371 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Safari/iOS/iPadOS/macOS/visionOS 26.4 Timelineinfo 03/03/2026 CVE reserved 03/25/2026 +22 days Advisory disclosed 03/25/2026 +0 days VulDB entry created 03/25/2026 +0 days VulDB entry last update Sourcesinfo Vendor: apple.com Advisory: support.apple.com Status: Confirmed CVE: CVE-2026-28861 (🔒) GCVE (CVE): GCVE-0-2026-28861 GCVE (VulDB): GCVE-100-352958 scip Labs: https://www.scip.ch/en/?labs.20180712 Entryinfo Created: 03/25/2026 07:52 Changes: 03/25/2026 07:52 (56) Complete: 🔍 Cache ID: 99:843:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸