CVE-2026-11836Production Debug-Unlock Token Verification Missing Device Binding
Updated under an hour ago ()
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It affects Caliptra Core ROM and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 1.8 LOW (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-345
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Caliptra
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Caliptra Core ROM caliptra:core_rom (from the name) | from 2.0.0 through 2.0.2; 2.0.3 not affected; from 2.1.0 through 2.1.1; 2.1.2 not affected | CNA record |
Caliptra Core Firmware caliptra:core_firmware (from the name) | from 2.0.0 through 2.0.1; 2.0.2 not affected; 2.1.0; 2.1.1 not affected | CNA record |
References
- https://github.com/chipsalliance/caliptra-sw/security/advisories/GHSA-hw68-jjx4-m376
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.