140 lines
6.7 KiB
JSON
140 lines
6.7 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-2026-46403",
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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": "2026-05-13T21:04:10.932Z",
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"datePublished": "2026-07-21T19:51:18.745Z",
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"dateUpdated": "2026-07-22T14:28:22.326Z"
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},
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"containers": {
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"cna": {
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"title": "Klever-Go KVM read-only execution can commit contract delete and upgrade side effects",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-693",
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"lang": "en",
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"description": "CWE-693: Protection Mechanism Failure",
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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": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 6.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N",
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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-jc6w-wmfc-fh33",
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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-jc6w-wmfc-fh33"
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},
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{
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"name": "https://github.com/klever-io/klever-go/commit/333f6ec910906e227705fc5767dc897d8fbfc862",
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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/commit/333f6ec910906e227705fc5767dc897d8fbfc862"
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},
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{
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"name": "https://github.com/klever-io/klever-go/commit/68b94a40824fac2d848a4ded6eb7c91ada6ce9ef",
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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/commit/68b94a40824fac2d848a4ded6eb7c91ada6ce9ef"
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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": "< 1.7.17",
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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": "2026-07-21T19:51:18.745Z"
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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. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnly(true)`, executes the destination context, and then restores the previous read-only state. However, the indirect contract delete and upgrade paths do not reject execution when `runtime.ReadOnly()` is true. As a result, a contract reached through read-only execution can call the production delete hook for a target contract it owns. The delete path appends the target address to `vmOutput.DeletedAccounts`, the output context merges `DeletedAccounts` into the caller output, and the smart contract processor later processes the VM output by deleting accounts listed in that field. The root cause is that read-only mode is applied as runtime state, but not enforced by the state-changing delete and upgrade host-core paths. This breaks the expected isolation boundary for workflows that rely on read-only calls to inspect another contract without allowing that callee to produce state-changing VM output. The issue is fixed in v1.7.17. Contract delete and upgrade host-core paths now reject execution when `runtime.ReadOnly()` is true. The invariant is regression-tested for delete, upgrade, storage writes, value transfers, and any VM output field that can later mutate chain state."
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}
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],
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"source": {
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"advisory": "GHSA-jc6w-wmfc-fh33",
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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-jc6w-wmfc-fh33",
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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": "2026-07-22T14:26:16.323007Z",
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"id": "CVE-2026-46403",
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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": "no"
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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": "2026-07-22T14:28:22.326Z"
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}
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}
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]
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}
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} |