Apple Safari: Mehrere Schwachstellen
WID-SEC-2026-0848 · first 25.03.2026 · updated 12.05.2026 · CVSS 8,3
What it is about
Safari ist der auf Apple Geräten eingesetzte Web Browser. Ein Angreifer kann mehrere Schwachstellen in Apple Safari ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, und um einen Cross-Site Scripting Angriff durchzuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsvorkehrungen zu umgehen
- einen Denial of Service Angriff durchzuführen
- Informationen offenzulegen
- einen Cross-Site Scripting Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Apple Safari <26.4
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Apple Safari 26.4
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- About the security content of Safari 26.4 vom 2026-03-24 support.apple.com
CVE: CVE-2026-20643, CVE-2026-20664, CVE-2026-20665, CVE-2026-20691, CVE-2026-28857, CVE-2026-28859, CVE-2026-28860, CVE-2026-28861, CVE-2026-28871
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.