# TDX Security Update 2026.08.11

**URL:** https://collective.flashbots.net/t/tdx-security-update-2026-08-11/5900
**Category:** The Flashbots Ship
**Tags:** security
**Created:** [August 11, 2026, 7:11pm UTC](https://collective.flashbots.net/t/tdx-security-update-2026-08-11/5900 "2026-08-11T19:11:01Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![mateusz](https://collective.flashbots.net/user_avatar/collective.flashbots.net/mateusz/32/336_2.png) [@mateusz](https://collective.flashbots.net/u/mateusz)
#### Post date: [August 11, 2026, 7:11pm UTC](https://collective.flashbots.net/t/tdx-security-update-2026-08-11/5900/1 "2026-08-11T19:11:01Z")

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We are aware of four TDX disclosures related to our systems.

Two of them: [INTEL-SA-01421](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01421.html) and [INTEL-SA-01462](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01462.html) are related to Intel’s TDX DCAP verification library and the Intel’s Guest software, which we are not using.

The other two: [INTEL-SA-01419](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01419.html) and [INTEL-SA-01442](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01442.html) are related to TDX Module and microcode vulnerabilities, and they have already been mitigated prior to the public disclosure in all affected systems (TDX module v1.5.34, microcode version `20260811`). The vulnerabilities also do not affect BuilderNet specifically as there are no untrusted privileged users in the system. Hosts running BuilderNet nodes will also be patched shortly to avoid any unlikely scenario where the vulnerabilities are exploited.