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VulnerabilityPublished Updated

CVE-2026-43700: Apple Safari · Processing maliciously crafted web content may disclose sensitive user information

Affects Apple SafariSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to 26.5.2 when convenient.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 26.5.2, 18.7.10, 26.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade Safari and macOS to 26.5.2; iOS and iPadOS to 26.5.2 or 18.7.10; tvOS and visionOS and watchOS to 26.6.

Affected software

ProductAffectedFixed in
AppleSafariAffected
  • <26.5.2
Fixed in
  • 26.5.2
AppleiOS and iPadOSAffected
  • <26.5.2
Fixed in
  • 26.5.2
AppleiOS and iPadOSAffected
  • <18.7.10
Fixed in
  • 18.7.10
ApplemacOSAffected
  • <26.5.2
Fixed in
  • 26.5.2
AppletvOSAffected
  • <26.6
Fixed in
  • 26.6
ApplevisionOSAffected
  • <26.6
Fixed in
  • 26.6

AI-suggested

This vulnerability is fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, and watchOS 26.6. Users and administrators should update affected Apple software to these versions or later to remediate the issue. Patch status is confirmed by the vendor advisory. No additional mitigations are specified.

Description

A cross-origin issue was addressed with improved tracking of security origins. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may disclose sensitive user information.

References

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