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VulnerabilityPublished Updated

CVE-2026-84518: Apple Safari · A malicious website may be able to determine what apps a user has installed

Affects Apple SafariSource CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium : upgrade to 27 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.14.3
EPSS
0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 27
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  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), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Safari and iOS and iPadOS and macOS to 27.

Affected software

ProductAffectedFixed in
AppleSafariAffected
  • <27
Fixed in
  • 27
AppleiOS and iPadOSAffected
  • <27
Fixed in
  • 27
ApplemacOSAffected
  • <27
Fixed in
  • 27

AI-suggested

Update Safari to version 27 or later, and ensure the device is running iOS 27, iPadOS 27, or macOS Golden Gate 27 or later. This update includes the official fix through improved state management. No additional mitigations are required once updated.

Description

A vulnerability in Apple Safari allows a malicious website to determine which apps a user has installed. This issue was addressed through improved state management and fixed in Safari 27, iOS 27, iPadOS 27, and macOS Golden Gate 27.

References

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