Improper Authorization Affecting op-tee/optee_os package, versions [3.20.0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OPTEEOPTEEOS-17872235
- published6 Jul 2026
- disclosed6 Jul 2026
- creditUnknown
Introduced: 6 Jul 2026
NewCVE-2026-44362 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Authorization due to improper propagation of versioning data during the Trusted Application loading process. An attacker can load applications signed with revoked or downgraded subkey chains by exploiting the failure to update the key->version field, which prevents the rollback database from advancing and enforcing subkey version checks.