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VulnerabilityPublished Updated

CVE-2026-28854: The issue was addressed with additional app bundle integrity checks

Source GCVE Database

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Authoritative record:CVE-2026-28854· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade to 27 soon.

Data as of 29 Oct 2026, 20:15 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.17.5
EPSS
0.1% chance of exploitation in 30 days – higher than 4% 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:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Oct 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 macOS to 27.

Affected software

ProductAffectedFixed in
ApplemacOSAffected
  • <27
Fixed in
  • 27

AI-suggested

This issue is fixed in macOS Golden Gate 27. Users and administrators should update to this version to ensure the additional app bundle integrity checks are in place. No other mitigation is indicated or required.

Description

CVE-2026-28854 is a vulnerability in macOS Golden Gate 27 where a maliciously modified app may not be prevented from launching due to insufficient app bundle integrity checks. The issue has been addressed by adding additional integrity checks in the fixed version.

References

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