1sealsemantic last-mile verification

Research / Finding

SecTrust name-constraint defense in depth improvements

F-SECTRUST-DN-001

Public snapshot: 8 Oct 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Read the evidence · View in research browse

Recorded evidence

—score not recorded
apple-oss-distributions/SecurityCredited fixapple-oss-distributions/Security

SecTrust name-constraint defense in depth improvements

fix mapping unconfirmed
details
Finding IDs
F-SECTRUST-DN-001 / F-SECTRUST-URI-001
Status
fix mapping unconfirmed
Recorded credit
Apple publicly acknowledges Oleh Konko of 1seal (1seal.org) in Additional recognition > Security.
Note
Apple confirmed to the researcher that the directoryName and URI name-constraint reports were tracked under one internal issue and classified as a defense in depth security improvement, rather than a direct security vulnerability. Apple stated that exploitation requires control of a compromised subordinate Certificate Authority and that no CVE would be issued. The public macOS Tahoe 26.6 advisory confirms the acknowledgement; it does not identify the individual mechanisms, exact patch or report-specific fixed release. The association of these two finding IDs and the classification come from vendor correspondence supplied by the researcher. One shared recognized improvement, not two independent vulnerabilities; patch authorship is not claimed.

F-SECTRUST-DN-001: Needs source detail. Apple publicly acknowledges the researcher under Security, without identifying a report-specific defect mechanism. Technical mapping and assessment are attributed separately to researcher-supplied correspondence. Reviewed 14 Oct 2026. Mechanism assessed by 1seal.

Mechanism source for F-SECTRUST-DN-001

F-SECTRUST-URI-001: Needs source detail. Apple publicly acknowledges the researcher under Security, without identifying a report-specific defect mechanism. Technical mapping and assessment are attributed separately to researcher-supplied correspondence. Reviewed 14 Oct 2026. Mechanism assessed by 1seal.

Mechanism source for F-SECTRUST-URI-001

Security area (1seal assessment): Unclassified. The public Apple Security acknowledgement provides no report-specific technical detail or patch. The name-constraint mapping and vendor assessment are separately attributed to correspondence supplied by the researcher. Reviewed 14 Oct 2026.

Clarify or correct this record privately. The email subject includes the finding ID. For an existing case, continue the agreed private thread. Do not post unpublished vulnerability details in public issues. Research disclosure policy.

How this page groups evidence

This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.