CVE-2026-40693 json
Panic on a GCP launch endorsement without TDX measurements
published 2d ago modified yesterday also EUVD-2026-121311 , GHSA-gwf2-8595-qw97 , RUSTSEC-2026-0480
- cvss
- 5.7
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 0%
- public exploits
- 0
- none known
Summary
Improper input validation for some Intel(R) TDX Workload Attestation software within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Patch / fix
- crates.io tdx_workload_attestation 0.2.0
Is CVE-2026-40693 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.10% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.7 | CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 5.7 | CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | tdx_workload_attestation | >=0.0.0-0, <0.2.0 |
0.2.0 |
Affected products
- n/a Intel(R) TDX Workload Attestation software
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/IntelLabs/tdx-workload-attestation/pull/87
web
- intel.com /content/www/us/en/security-center/advisory/intel-sa-01520.html
-
crates.io
/crates/tdx_workload_attestation
package
-
rustsec.org
/advisories/RUSTSEC-2026-0480.html
advisory
-
intel.com
/content/www/us/en/security-center/advisory/intel-sa-01520.html
web
-
github.com
/IntelLabs/tdx-workload-attestation/releases/tag/v0.2.0
web
Sources
- CVE List CVE-2026-40693
- NVD CVE-2026-40693
- OSV RUSTSEC-2026-0480
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.