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A signing certificate outside its validity period was\ntherefore still accepted during launch endorsement verification.\n\nIntel describes the issue as improper certificate validation and classifies\nit as escalation of privilege, with a CVSS 4.0 base score of 5.9, in\nINTEL-SA-01520.\n\nThe flaw was corrected in\n[#86](https://github.com/IntelLabs/tdx-workload-attestation/pull/86), released\nin 0.2.0. The function now returns `Ok(false)` when the current time is\noutside the certificate's `notBefore`/`notAfter` range.\n\nReported by [Borys Tsyrulnikov](https://borystsyrulnikov.dev).","state":0,"publishedAt":"2026-11-10T12:00:00+00:00","modifiedAt":"2026-11-11T08:45:02.4844119+00:00","affected":[{"ecosystem":"crates.io","name":"tdx_workload_attestation","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.0.0-0"},{"kind":"fixed","version":"0.2.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null}],"references":["https://crates.io/crates/tdx_workload_attestation","https://rustsec.org/advisories/RUSTSEC-2026-0481.html","https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01520.html","https://github.com/IntelLabs/tdx-workload-attestation/pull/86","https://github.com/IntelLabs/tdx-workload-attestation/releases/tag/v0.2.0"],"sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0481","license":"OSV · upstream source license applies","key":"osv:RUSTSEC-2026-0481","identifiers":["RUSTSEC-2026-0481","CVE-2026-42067","GHSA-w4mf-755j-wjwc"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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