Case · DiggingBeagle record

Multiple approval monitors can share one poisoned evidence boundary

Assessment profile

Assessment method
Setting
evaluation
Exploitation
demonstrated
Evidence
Grade B
Remediation
mitigation available
AI role
AGAINST AI
Basis and provenance

CLM-CP17-CORRELATED-APPROVAL-BOUNDARY reports: Adding a rule engine restored the tested condition; zero observed failures bounds the measured attacks rather than proving universal resistance. Source SRC-2026-CP17-CORRELATED-APPROVAL is located at 'Confirmation secondary pool; Section 9 and Ethics'. The distinctive mechanism begins: The experiment asks several AI monitors to approve consequential payments from potentially shared or adversarially controlled evidence. Classification: setting=evaluation, exploit_status=demonstrated, evidence_grade=B on the bounded original investigator/vendor or paper evidence, without independent dynamic replication. remediation_status=mitigation_available; scoped control or limit: Count genuinely independent evidence sources rather than model votes, and place at least one deterministic, transaction-bound verifier outside the same model-and-input failure domain. Reevaluate with adversarial inputs rather than extrapolating these results to all banks or wallets. The null impact band avoids an ungrounded cross-Case severity rating; observed damage, targeted population and controlled test outcomes cannot be exchanged as the same quantity. Where a patch is described, its availability is separate from independently tested effectiveness.

Assessed Oct 23, 2026 using diggingbeagle.assessment/1.

At a glance

Claims & evidence

CLM-CP17-CORRELATED-APPROVAL-BOUNDARYAdding a rule engine restored the tested condition; zero observed failures bounds the measured attacks rather than proving universal resistance.supported

Basis: reported finding

Link to claim
CLM-CP17-CORRELATED-APPROVAL-NEGATIVEThe pre-registered worst-case claim failed for the twelve language-model monitors: one attack defeated the required coverage condition.supported

Basis: reported finding

Link to claim
CLM-CP17-CORRELATED-APPROVAL-TRADEOFFOn confirmation data, the source-counting rule rejected 0.9% of correct payments versus 7.4% for the selected counting baseline at equal measured safety.supported

Basis: reported finding

Link to claim

Controls and mitigations

  • Count genuinely independent evidence sources rather than model votes, and place at least one deterministic, transaction-bound verifier outside the same model-and-input failure domain. Reevaluate with adversarial inputs rather than extrapolating these results to all banks or wallets.

Unknowns and contradictions

  • Results depend on the synthetic task, monitor pool and attack budget.

Sources and citation

Material revision history

  1. Oct 23, 2026 · Canonical change recorded · new in release · revision 183