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CVE-2026-28861 (GCVE-0-2026-28861)

Vulnerability from cvelistv5 – Published: 2026-03-25 00:32 – Updated: 2026-08-17 21:30
VLAI
Summary
A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-26 13:48 UTC
CWE
  • A malicious website may be able to access script message handlers intended for other origins
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-346 - Origin Validation Error
Assigner
References
Impacted products
Vendor Product Version CPE status
Apple Safari Affected: 0 , < 26.4 (custom)
guessed Create a notification for this product.
Apple iOS and iPadOS Affected: 0 , < 18.7.7 (custom)
Affected: 0 , < 26.4 (custom)
guessed Create a notification for this product.
Apple macOS Affected: 0 , < 26.4 (custom)
guessed Create a notification for this product.
Apple visionOS Affected: 0 , < 26.4 (custom)
guessed Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Show details on NVD website
To clipboard 

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      "cveMetadata": "{\"cveId\": \"CVE-2026-28861\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-17T21:30:13.527Z\", \"dateReserved\": \"2026-03-03T16:36:03.972Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2026-03-25T00:32:03.933Z\", \"assignerShortName\": \"apple\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.