CVE-2026-20629: Apple macOS · An app may be able to access user-sensitive data
Affects Apple macOSSource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium : upgrade to 26.3 when convenient.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-25.
What to do
Upgrade Apple macOS to 26.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ApplemacOS | Affected
| Fixed in
|
AI-suggested
To mitigate CVE-2026-20629, organizations should: 1) Immediately update all macOS devices to macOS Tahoe 26.3 or later, where the vulnerability is fixed. 2) Enforce strict application installation policies, allowing only trusted and vetted apps to reduce the risk of malicious apps exploiting this flaw. 3) Educate users about the risks of installing untrusted software and the importance of avoiding suspicious prompts requiring interaction. 4) Implement endpoint protection solutions capable of detecting anomalous local app behaviors that attempt to access sensitive files or temporary directories. 5) Use macOS security features such as System Integrity Protection (SIP) and sandboxing to limit app capabilities. 6) Regularly audit and monitor file system access logs to detect unusual access patterns to temporary files. 7) Employ data loss prevention (DLP) tools to monitor and control sensitive data exposure on endpoints. These targeted measures go beyond generic patching by focusing on reducing attack surface and early detection of exploitation attempts.
Description
A privacy issue was addressed with improved handling of temporary files. This issue is fixed in macOS Tahoe 26.3. An app may be able to access user-sensitive data.