High severityNVD Advisory· Published Jun 24, 2026· Updated Jun 25, 2026
CVE-2026-12681
CVE-2026-12681
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/google/go-attestationGo | < 0.6.1 | 0.6.1 |
Affected products
15- osv-coords14 versionspkg:apk/chainguard/teleport-18.6pkg:apk/chainguard/teleport-18.6-operatorpkg:apk/chainguard/teleport-17pkg:apk/chainguard/tbotpkg:apk/chainguard/teleport-17-operatorpkg:apk/chainguard/teleport-17-tbotpkg:apk/chainguard/teleport-18pkg:apk/chainguard/teleport-18-operatorpkg:apk/chainguard/teleport-18-tbotpkg:apk/chainguard/teleport-operator-fips-16pkg:apk/chainguard/teleport-operator-fips-17pkg:apk/chainguard/teleport-operator-fips-18pkg:apk/wolfi/teleport-18.6pkg:apk/wolfi/teleport-18.6-operator
< 18.6.8-r30+ 13 more
- (no CPE)range: < 18.6.8-r30
- (no CPE)range: < 18.6.8-r30
- (no CPE)range: < 17.7.26-r1
- (no CPE)range: < 18.9.2-r2
- (no CPE)range: < 17.7.26-r1
- (no CPE)range: < 17.7.26-r1
- (no CPE)range: < 18.9.2-r1
- (no CPE)range: < 18.9.2-r1
- (no CPE)range: < 18.9.2-r1
- (no CPE)range: < 16.5.18-r20
- (no CPE)range: < 17.7.26-r1
- (no CPE)range: < 18.9.2-r1
- (no CPE)range: < 18.6.8-r30
- (no CPE)range: < 18.6.8-r30
- Range: <=0.6.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-9r4w-jg96-92mvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-12681ghsaADVISORY
- github.com/google/go-attestation/commit/b6e905e7ae52937f02b5ca494dd1c6a3ac7a1003nvdWEB
- github.com/google/go-attestation/pull/502ghsaWEB
- github.com/google/go-attestation/releases/tag/v0.6.1nvdWEB
- github.com/google/go-attestation/security/advisories/GHSA-9r4w-jg96-92mvnvdWEB
News mentions
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