CVE-2026-43713
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA permissions issue was addressed with additional restrictions. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Visiting a website may leak sensitive data.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is a permissions/access control vulnerability in Apple's Safari browser and multiple operating systems (iOS, iPadOS, macOS, tvOS, visionOS, watchOS). The vulnerability allows a malicious website to potentially leak sensitive data due to insufficient permission restrictions. The fix involves Apple adding additional access restrictions to prevent unauthorized data access via web content.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 26.5.2< 26.5.2< 26.5.2>= 26.0, < 26.5.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check Safari version on macOSOpen Safari, click Safari menu > About Safari. Compare the version number to the affected range (< 26.5.2).Affected if Safari version is less than 26.5.2 on macOS
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Check Safari version on iOS/iPadOSOpen Settings app, go to Safari > About. Compare the version number to the affected range (< 26.5.2).Affected if Safari version is less than 26.5.2 on iOS or iPadOS
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Check macOS versionClick Apple menu > About This Mac. The vulnerability applies to macOS >= 26.0 and < 26.5.2.Affected if macOS version is 26.0 or higher but Safari is below 26.5.2
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Confirm browser is used for web navigationThe vulnerability triggers when visiting a malicious website. If Safari with a vulnerable version is used for browsing, the permission restriction flaw is present.Affected if Safari version is below 26.5.2 and the browser is used to visit websites
A user is affected if their Safari browser version is below 26.5.2 on any Apple platform, or if they are running macOS 26.0-26.5.2 with an unpatched Safari.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped26.5.2
Update all affected Apple devices to the specified versions (Safari 26.5.2, iOS/iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6) or later to apply the vendor patch.
Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2
- Open the App Store on your Mac (for macOS/Safari) or go to Settings > General > Software Update on iOS/iPadOS devices
- For macOS: Check for updates and install macOS Tahoe 26.5.2 when available, or update Safari to 26.5.2
- For iOS: Go to Settings > General > Software Update and install iOS 26.5.2
- For iPadOS: Go to Settings > General > Software Update and install iPadOS 26.5.2
- After updating, verify the installed version in Settings > General > About (iOS/iPadOS) or Safari > About Safari (macOS)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-43713 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-43713 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data