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CVE-2026-12681 Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation

Description

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList() does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended to the trusted SHA256 hash list. A crafted TPM event log could inject arbitrary SHA256 hashes into the verifier's trusted measurement database, enabling a remote attestation verifier to accept a compromised boot state. This issue affects go-attestation: through 0.6.0.

Affected products and versions

Product Affected versions Fixed in
go-attestation 0.6 earliest → 0.6.0 No fix stated

Other CVEs of go-attestation

The 2 CVEs of go-attestation →
CVE-2026-19201 An uncontrolled recursion vulnerability in the Windows SIPA event log parser of Google go-attestation versions up to and… 6.6 Medium
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