CVE-2026-112377

High

Description

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.

SeverityHigh

CVSS7.4

Exploit probability—

ProductCcc-attestation Attested-tls-poc

PublishedOct 19, 2026

First seenOct 19, 2026

Weakness typeCWE-346CWE-346

How to fix

Patches

github.com/CCC-Attestation/attested-tls-poc/pull/58

Affected products

Product	Affected versions	Fixed in
CCC-Attestation attested-tls-poc	v ≤ 731ca82ed533fc7a1092be980887ae2e34261da2	—

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