CVE-2026-11836
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Production Debug-Unlock Token Verification Missing Device Binding
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Core ROM
- Vendor
- Caliptra
- Product
- Core ROM
- Platforms
- Unknown
- Default status
unaffected- Package
- Core ROM
- Package collection
- https://github.com/chipsalliance/caliptra-sw
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.0.0 | affected | semver | Unavailable | 2.0.2 | None listed |
| 2.0.3 | unaffected | semver | Unavailable | Unavailable | None listed |
| 2.1.0 | affected | semver | Unavailable | 2.1.1 | None listed |
| 2.1.2 | unaffected | semver | Unavailable | Unavailable | None listed |
Core Firmware
- Vendor
- Caliptra
- Product
- Core Firmware
- Platforms
- Unknown
- Default status
unaffected- Package
- Core Firmware
- Package collection
- https://github.com/chipsalliance/caliptra-sw
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.0.0 | affected | semver | Unavailable | 2.0.1 | None listed |
| 2.0.2 | unaffected | semver | Unavailable | Unavailable | None listed |
| 2.1.0 | affected | semver | Unavailable | Unavailable | None listed |
| 2.1.1 | unaffected | semver | Unavailable | Unavailable | None listed |