{"repo":"NousResearch/hermes-agent","public_id":"31141","display_label":"Skills trust-level prefix-match security hardening","summary":"These items address a vulnerability where attacker-controllable skill identifiers could exploit prefix-matching logic in skills_guard to obtain elevated trust tiers. The work focuses on tightening trust-level assignment by enforcing exact or subpath matching and anchoring trust to verified provenance rather than identifier strings.","subsystem":"skills","counts":{"members":4,"open_issues":0,"open_issues_distinct":0,"open_prs":0,"closed_issues":1,"merged_prs":1,"attempt_prs":2},"landed_fix":{"status":"merged_to_main","basis":"structural","pr":31229,"merged_at":"2026-05-25T08:51:15+00:00"},"resolution":{"state":"resolved","by":"pr-31229"},"freshness":{"state":"verified","last_verified_at":"2026-05-25T08:51:15+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.5},"fix_edges":[{"issue_number":31141,"pr_number":31229,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-05-25T08:51:15+00:00"}],"members":[{"kind":"issue","number":31141,"title":"security: skills_guard._resolve_trust_level prefix-match grants trusted tier to attacker-controlled identifiers","url":null,"state":"closed"},{"kind":"pr","number":31146,"title":"fix(security): use exact-or-subpath match for skills_guard trusted-repo tier","url":null,"state":"closed","close_reason":{"refs":[{"kind":"commit","value":"93660643a","number":0},{"kind":"pr","value":"#31229","number":31229}],"category":"superseded_by_pr","implication":"superseded"},"merged":false},{"kind":"pr","number":31153,"title":"security(skills): prevent prefix-match trust level bypass","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#31146","number":31146},{"kind":"pr","value":"#31141","number":31141}],"category":"duplicate_of","implication":"duplicate"},"merged":false},{"kind":"pr","number":31229,"title":"fix: harden skill trust source matching","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["hermes_cli/skills_hub.py","tests/hermes_cli/test_skills_hub.py","tests/tools/test_skills_guard.py","tools/skills_guard.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}