CVE-2026-43740
A remote, anonymous attacker can exploit multiple vulnerabilities in WebKitGTK to disclose information, cause a denial of service, manipulate data, and bypass security precautions.
CSIRTS triage
- What
- Multiple vulnerabilities can disclose information, cause denial of service, manipulate data, and bypass security precautions.
- Who is affected
- Remote, anonymous attackers can exploit these vulnerabilities.
- Urgency
- Remediation is medium urgency due to the potential for exploitation and the variety of impacts.
- Action
- Update to the latest version of WebKitGTK to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
Advisory coverage (13)
- medium[NEW] [medium] WebKitGTK: Multiple vulnerabilitiescert-bund · 2026-08-25
- high[NEW] [high] Apple macOS (Tahoe, Sonoma, and Sequoia): Multiple vulnerabilitiescert-bund · 2026-08-07
- medium[NEW] [medium] Apple Safari: Multiple vulnerabilitiescert-bund · 2026-07-28
- medium[NEW] [medium] Apple iOS and iPadOS: Multiple vulnerabilitiescert-bund · 2026-07-28
- unknownNCSC-2026-0267 [1.00] [M/H] Vulnerabilities fixed in Apple MacOSncsc-nl · 2026-07-28
- unknownNCSC-2026-0266 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl · 2026-07-28
- unknownMultiple vulnerabilities in Apple products (July 28, 2026)cert-fr-avis · 2026-07-28
- unknownDSA-6398-1 webkit2gtk - security updatedebian · 2026-07-23
- unknownApple Products Multiple Vulnerabilitieshkcert · 2026-07-06
- unknownNCSC-2026-0215 [1.00] [M/H] Vulnerabilities fixed in Apple iOS and iPadOSncsc-nl · 2026-06-30
- unknownNCSC-2026-0214 [1.00] [M/H] Vulnerabilities fixed in Apple MacOSncsc-nl · 2026-06-30
- unknownMultiple vulnerabilities in Apple products (June 30, 2026)cert-fr-avis · 2026-06-30
- mediumCVE-2026-43740: The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, i…nvd · 2026-06-29
External references
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