CVE-2026-11836

Insufficient verification of data authenticity in Caliptra Core ROM and Core Firmware (validate_debug_unlock_token()) in subsystem mode allows an attacker with access to the integrator's debug unlock signing service to unlock production debug on an unintended device by presenting a valid token issued for a different device sharing the same debug unlock key hash. The 384-bit challenge nonce continues to prevent replay of previously issued tokens. Practical impact is limited to loss of per-device scope enforcement within a set of devices that share the same unlock authority by design; it does not enable debug unlock on devices outside that set. This issue affects Core ROM: 2.0.0 through 2.0.2, 2.1.0 through 2.1.1; Core Firmware: 2.0.0 through 2.0.1, 2.1.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/chipsalliance/caliptra-sw/security/advisories/GHSA-hw68-jjx4-m376

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-04 00:16

Updated : 2026-09-03 16:43

NVD link : CVE-2026-11836

Mitre link : CVE-2026-11836

CVE.ORG link : CVE-2026-11836

JSON object : View

Products Affected

No product.

CWE

CWE-345

Insufficient Verification of Data Authenticity

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