CVE intelligence and bounded remediation

CVE-2025-31254 — This issue was addressed with improved URL validation

Medium CVSS 5.4

This issue was addressed with improved URL validation. This issue is fixed in Safari 26, iOS 26 and iPadOS 26. Processing maliciously crafted web content may lead to unexpected URL redirection.

Severity
Medium
CVSS
5.4 (3.1)
Published
2025-09-15
CISA KEV
Not currently listed
Ecosystem
apple/platform
Weaknesses
CWE-863

Affected products

  • apple / safari
  • apple / ipados
  • apple / iphone_os

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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