GO-2026-6893

    Dashboard / Vulnerabilities / GO-2026-6893

    GO-2026-6893

    Published: 5 Nov 2026Last Modified: 5 Nov 2026

    Summary: Event type spoofing via UntrustedType in github.com/google/go-eventlog

    Details: In github.com/google/go-eventlog/tcg, Event exposes UntrustedType, which returns the raw event type header from the TCG event log without verifying that the event data matches its digest. Callers that dispatch on Event.UntrustedType after ParseAndReplay can be tricked by a modified event type field for events whose digests are not verified against EventData.

    References: https://github.com/google/go-eventlog/commit/1991f15bc4b01cffc4e329e9e532c1ae930ae5aa, https://github.com/google/go-eventlog/pull/39, https://github.com/golang/vulndb/issues/6893, https://bschaatsbergen.com/posts/attacking-rats-verifiers-through-the-tcg-event-log/

    Affected packages

    Package

    Name: github.com/google/go-eventlog

    Purl: pkg:golang/github.com/google/go-eventlog

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.0.3-0.20261001001437-1991f15bc4b0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GO-2026-6893 | CVE-DB