CCC-Attestation attested-tls-poc Flaw (CVE-2026-112377) Rated CVSS 9.1
A newly published critical vulnerability in CCC-Attestation attested-tls-poc carries a CVSS score of 9.1. Here is what is affected and how to respond.
Key points
- CVE-2026-112377 affects CCC-Attestation attested-tls-poc.
- CVSS 9.1 (Critical).
- No exploitation confirmed yet.
CCC-Attestation attested-tls-poc is affected by CVE-2026-112377, a security flaw that the National Vulnerability Database rates 9.1 out of 10.
At a glance
- CVE
- CVE-2026-112377
- Product
- CCC-Attestation attested-tls-poc
- CVSS
- 9.1 Critical
- Weakness
- CWE-346
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: 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.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Ccc-Attestation | attested-tls-poc | up to 731ca82ed533fc7a1092be980887ae2e34261da2 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-112377
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-112377?
CVE-2026-112377 is a CWE-346 vulnerability in CCC-Attestation attested-tls-poc.
How severe is CVE-2026-112377?
It has a CVSS score of 9.1 Critical.
Is CVE-2026-112377 being exploited?
There is no public confirmation of exploitation at the time of publication.
