{"items":[{"id":"NVI-00013001","kind":"vulnerability","title":"Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wh6-9hq7-9688","CVE-2026-82407"],"plain_summary":"GitHub lists this reviewed advisory for github.com/klever-io/klever-go. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1fecb559a6740f9a711ad11aba1707f4"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.466%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40381. Missing scores are unknown.","source_id":"sr-1fecb559a6740f9a711ad11aba1707f4"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-342ea6896891b06a2cab9d7af02286f8","url":"https://github.com/advisories/GHSA-9wh6-9hq7-9688","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wh6-9hq7-9688","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-1fecb559a6740f9a711ad11aba1707f4","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-82407","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.083Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-342ea6896891b06a2cab9d7af02286f8"],"technology":"github.com/klever-io/klever-go","known_exclusions":[],"conditions_summary":"**Location:** `core/kapp/validators/validators.go:201` (`Register`), (`genesis/checking/nodesSetupChecker.go:73`). `core/consensus/slot/bls/subslotStartSlot.go:165` `core/consensus/.../headerSignatureVerify.go:123` (`Create(...)`).\n\n### Description\n\nKlever uses a BDN (Boneh-Drijvers-Neven) BLS multi-signature over BLS12-381 to finalize blocks (`crypto/signing/mcl/multisig/bls.go`, herumi/bls-go-binary). The library is initialized with only `bls.Init(bls.BLS12_381)` and no order-verification flags, so `Deserialize` does not enforce prime-order-subgroup membership  subgroup safety relies on explicit `IsValidOrder()` calls in the wrappers.\n\nRuntime validator registration (`validators.Register`) stores the submitted 96-byte `BLSPublicKey` via `SetBLSPublicKey` with **no curve check, no subgroup check, and no proof-of-possession** (`CreateValidatorContract` carries the key but no signature proving key ownership; grep confirms no `proofOfPossession`/`VerifyProof`/`BLSSignature` verification anywhere in `core/kapp/validators/`). `CheckPublicKeyValid` — which does `IsValid && IsValidOrder && !IsZero` — runs only at genesis, not on runtime registration/update.\n\n### POC\n\nAttack: \n(1) stake t","public_affected_ranges":["<= 1.7.19"]}],"null_published_at":"2026-11-07T14:01:55.424Z","source_updated_at":"2026-09-23T21:24:09.000Z","source_disclosed_at":"2026-09-23T21:24:08.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013001","kind":"vulnerability","title":"Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wh6-9hq7-9688","CVE-2026-82407"],"plain_summary":"GitHub lists this reviewed advisory for github.com/klever-io/klever-go. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09a93e7f08e4f471a1a666421046c88f"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.466%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40332. Missing scores are unknown.","source_id":"sr-09a93e7f08e4f471a1a666421046c88f"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-342ea6896891b06a2cab9d7af02286f8","url":"https://github.com/advisories/GHSA-9wh6-9hq7-9688","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wh6-9hq7-9688","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-09a93e7f08e4f471a1a666421046c88f","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-82407","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.143Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-342ea6896891b06a2cab9d7af02286f8"],"technology":"github.com/klever-io/klever-go","known_exclusions":[],"conditions_summary":"**Location:** `core/kapp/validators/validators.go:201` (`Register`), (`genesis/checking/nodesSetupChecker.go:73`). `core/consensus/slot/bls/subslotStartSlot.go:165` `core/consensus/.../headerSignatureVerify.go:123` (`Create(...)`).\n\n### Description\n\nKlever uses a BDN (Boneh-Drijvers-Neven) BLS multi-signature over BLS12-381 to finalize blocks (`crypto/signing/mcl/multisig/bls.go`, herumi/bls-go-binary). The library is initialized with only `bls.Init(bls.BLS12_381)` and no order-verification flags, so `Deserialize` does not enforce prime-order-subgroup membership  subgroup safety relies on explicit `IsValidOrder()` calls in the wrappers.\n\nRuntime validator registration (`validators.Register`) stores the submitted 96-byte `BLSPublicKey` via `SetBLSPublicKey` with **no curve check, no subgroup check, and no proof-of-possession** (`CreateValidatorContract` carries the key but no signature proving key ownership; grep confirms no `proofOfPossession`/`VerifyProof`/`BLSSignature` verification anywhere in `core/kapp/validators/`). `CheckPublicKeyValid` — which does `IsValid && IsValidOrder && !IsZero` — runs only at genesis, not on runtime registration/update.\n\n### POC\n\nAttack: \n(1) stake t","public_affected_ranges":["<= 1.7.19"]}],"null_published_at":"2026-11-03T17:49:15.032Z","source_updated_at":"2026-09-23T21:24:09.000Z","source_disclosed_at":"2026-09-23T21:24:08.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013001","kind":"vulnerability","title":"Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wh6-9hq7-9688","CVE-2026-82407"],"plain_summary":"GitHub lists this reviewed advisory for github.com/klever-io/klever-go. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-342ea6896891b06a2cab9d7af02286f8"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-342ea6896891b06a2cab9d7af02286f8","url":"https://github.com/advisories/GHSA-9wh6-9hq7-9688","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wh6-9hq7-9688","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-342ea6896891b06a2cab9d7af02286f8"],"technology":"github.com/klever-io/klever-go","known_exclusions":[],"conditions_summary":"**Location:** `core/kapp/validators/validators.go:201` (`Register`), (`genesis/checking/nodesSetupChecker.go:73`). `core/consensus/slot/bls/subslotStartSlot.go:165` `core/consensus/.../headerSignatureVerify.go:123` (`Create(...)`).\n\n### Description\n\nKlever uses a BDN (Boneh-Drijvers-Neven) BLS multi-signature over BLS12-381 to finalize blocks (`crypto/signing/mcl/multisig/bls.go`, herumi/bls-go-binary). The library is initialized with only `bls.Init(bls.BLS12_381)` and no order-verification flags, so `Deserialize` does not enforce prime-order-subgroup membership  subgroup safety relies on explicit `IsValidOrder()` calls in the wrappers.\n\nRuntime validator registration (`validators.Register`) stores the submitted 96-byte `BLSPublicKey` via `SetBLSPublicKey` with **no curve check, no subgroup check, and no proof-of-possession** (`CreateValidatorContract` carries the key but no signature proving key ownership; grep confirms no `proofOfPossession`/`VerifyProof`/`BLSSignature` verification anywhere in `core/kapp/validators/`). `CheckPublicKeyValid` — which does `IsValid && IsValidOrder && !IsZero` — runs only at genesis, not on runtime registration/update.\n\n### POC\n\nAttack: \n(1) stake t","public_affected_ranges":["<= 1.7.19"]}],"null_published_at":"2026-11-01T07:29:12.907Z","source_updated_at":"2026-09-23T21:24:09.000Z","source_disclosed_at":"2026-09-23T21:24:08.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}