133 lines
5.8 KiB
JSON
133 lines
5.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-52878",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-08T21:44:27.364Z",
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"datePublished": "2026-08-07T22:32:27.340Z",
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"dateUpdated": "2026-08-10T14:16:48.518Z"
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},
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"containers": {
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"cna": {
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"title": "Klever-Go: Unauthenticated nil-pointer DoS in P2P transaction validation can halt the chain",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-476",
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"lang": "en",
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"description": "CWE-476: NULL Pointer Dereference",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/klever-io/klever-go/security/advisories/GHSA-rm5c-5x2p-48wr",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/klever-io/klever-go/security/advisories/GHSA-rm5c-5x2p-48wr"
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},
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{
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"name": "https://github.com/klever-io/klever-go/releases/tag/v1.7.18",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/klever-io/klever-go/releases/tag/v1.7.18"
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}
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],
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"affected": [
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{
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"vendor": "klever-io",
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"product": "klever-go",
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"versions": [
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{
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"version": ">= 1.7.14, < 1.7.18",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-07T22:32:27.340Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Klever-Go is the Go implementation of the Klever blockchain protocol. Versions 1.7.14 through 1.7.17 are vulnerable to a nil-pointer panic triggered by a protobuf Transaction whose embedded RawData sub-message is omitted. This omission causes RawData to decode to nil. Every transaction gossiped on the Klever-Go P2P network is decoded and validated synchronously inside the libp2p pubsub topic-validator callback, where txVersionChecker.CheckTxVersion dereferences tx.RawData.Version with no nil check. Because the libp2p pubsub callback, the underlying go-libp2p-pubsub validation worker, and Klever's own network/p2p layer install no recover(), the panic propagates and crashes the entire node process. The attacker payload is a 3-byte protobuf message; no validator key, stake, funds, or on-chain account is required, and delivery aimed at enough of the BLS validator set can halt block production, resulting in a chain halt. This issue has been fixed in version 1.7.18."
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}
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],
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"source": {
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"advisory": "GHSA-rm5c-5x2p-48wr",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/klever-io/klever-go/security/advisories/GHSA-rm5c-5x2p-48wr",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-10T14:09:10.957245Z",
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"id": "CVE-2026-52878",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-10T14:16:48.518Z"
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}
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}
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]
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}
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} |