🛡️ CVE-2026-11836

⚪ Unknown ✅ No Known Exploit CWE-345 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Weakness class

CVE-2026-11836 is classified as CWE-345: Insufficient Verification of Data Authenticity. Data is trusted without confirming it really came from the claimed source and was not altered.

Affected software

CVE-2026-11836 is recorded against 1 package.

  • unknown

Timeline and source

Published on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-345
Public Exploit ✅ No
Source NVD
Published 2026-08-04
Updated 2026-08-11
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown

Similar Threats

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