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VulnerabilityPublished Updated

CVE-2026-20660: Apple Safari · Path Traversal

Affects Apple SafariSource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 26.3 when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 55% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 26.3, 18.7.5, 15.7.5 +1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade Safari and visionOS to 26.3; iOS and iPadOS to 26.3 or 18.7.5; macOS to 26.3, 15.7.5 or 14.8.4.

Affected software

ProductAffectedFixed in
AppleSafariAffected
  • <26.3
Fixed in
  • 26.3
AppleiOS and iPadOSAffected
  • <26.3
Fixed in
  • 26.3
AppleiOS and iPadOSAffected
  • <18.7.5
Fixed in
  • 18.7.5
ApplemacOSAffected
  • <26.3
Fixed in
  • 26.3
ApplemacOSAffected
  • <15.7.5
Fixed in
  • 15.7.5
ApplemacOSAffected
  • <14.8.4
Fixed in
  • 14.8.4

AI-suggested

To mitigate CVE-2026-20660, organizations should immediately deploy the security updates released by Apple, including Safari 26.3 and the corresponding OS updates (iOS 18.7.5, iPadOS 18.7.5, macOS Sequoia 15.7.5, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3). Beyond patching, organizations should implement network-level protections such as web filtering to block access to untrusted or suspicious websites that could host malicious content exploiting this vulnerability. User education is critical to reduce risky behaviors like clicking unknown links or visiting untrusted sites. Employ endpoint detection and response (EDR) solutions capable of monitoring file system changes and detecting anomalous file writes on Apple devices. Restrict user permissions to limit the ability of browsers to write files outside designated directories. Regularly audit and monitor file integrity on critical systems. Finally, maintain robust backup and recovery processes to restore systems in case of compromise.

Description

A path handling issue was addressed with improved logic. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A remote user may be able to write arbitrary files.

References

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