CVE-2026-112377 (GCVE-0-2026-112377)

Vulnerability from cvelistv5 – Published: 2026-10-19 17:26 – Updated: 2026-10-20 17:39 Unsupported When Assigned
VLAI
Title
CCC Attestation SIG attested-tls-poc through commit 731ca82 Attestation Relay Attack
Summary
CCC Attestation SIG attested-tls-poc through commit 731ca82 fails to bind early attestation Evidence to the TLS connection, allowing attackers to relay valid Evidence from a genuine attester. Attackers holding an extracted attested TLS private key can forward the relying party's nonce to a genuine attester and replay its Evidence to impersonate the attested workload and intercept data.
Severity
9.1 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:39 UTC
CWE
  • CWE-346 - Origin Validation Error
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6614 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
CCC-Attestation attested-tls-poc Affected: 0 , ≤ 731ca82ed533fc7a1092be980887ae2e34261da2 (git)
guessed Create a notification for this product.
Date Public
2026-07-17 00:00
Credits
Muhammad Usama Sardar
Show details on NVD website
To clipboard 

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