{"api_version":"1","generated_at":"2026-08-05T01:33:35+00:00","cve":"CVE-2026-11835","urls":{"html":"https://cve.report/CVE-2026-11835","api":"https://cve.report/api/cve/CVE-2026-11835.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-11835","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-11835"},"summary":{"title":"Caliptra Update-Reset Secure-Boot Bypass via Attacker-Chosen AXI Staging Address (TOCTOU)","description":"Time-of-check time-of-use (TOCTOU) vulnerability combined with missing input validation in Caliptra Core ROM (UpdateResetFlow::run()) in subsystem mode allows a compromised local attacker to silently bypass secure boot by supplying an AXI staging address that is not validated against the strap-configured SS_EXTERNAL_STAGING_AREA_BASE_ADDR, enabling firmware to be modified between verification and loading into ICCM. Attestation continues to report the originally verified image digest, masking the compromise. 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