Cross-origin image disclosure via Canvas cache handling
Published Nov 4, 2025 · Updated Nov 4, 2025
Cross-origin data exposure in WebKit Canvas in Apple products before 26.1 allows remote attackers to exfiltrate cached image data. Apple identifies cache handling as the faulty locus but has not disclosed which cache operation loses the required origin isolation. Exploitation requires a user to visit an attacker-controlled website, and the reported consequence is limited to image-data disclosure.
Summary
What happened
Cross-origin data exposure in WebKit Canvas in Apple products before 26.1 allows remote attackers to exfiltrate cached image data. Apple identifies cache handling as the faulty locus but has not disclosed which cache operation loses the required origin isolation. Exploitation requires a user to visit an attacker-controlled website, and the reported consequence is limited to image-data disclosure.
The record
- CVE
- CVE-2025-43392
- Published
- Nov 4, 2025
- Updated
- Nov 4, 2025
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- CWE-942, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 4, 2025CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <26.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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