CVE-2026-112377 CCC Attestation SIG attested-tls-poc through commit 731ca82 Attestation Relay Attack
Attackers can relay attestation evidence to impersonate workloads and intercept data due to missing binding between evidence and TLS connections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112377?
CVE-2026-112377 is a critical vulnerability in CCC-Attestation attested-tls-poc, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-346
Which versions are affected by CVE-2026-112377?
How do I fix CVE-2026-112377?
No fix has been published for CVE-2026-112377 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112377 being exploited?
There is no known exploitation of CVE-2026-112377 in the wild and no public exploit code.
Sources
Also known as GHSA-hqrh-qq2r-6h96.