145 lines
6.7 KiB
JSON
145 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-2026-53602",
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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": "2026-06-09T19:39:52.404Z",
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"datePublished": "2026-09-04T19:40:16.908Z",
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"dateUpdated": "2026-09-04T19:50:03.057Z"
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},
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"containers": {
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"cna": {
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"title": "nebula-mesh - Host revocation is not durable: blocked/offboarded hosts can regain a valid certificate",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-862",
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"lang": "en",
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"description": "CWE-862: Missing Authorization",
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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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"descriptions": [
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{
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"cweId": "CWE-285",
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"lang": "en",
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"description": "CWE-285: Improper Authorization",
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 6.9,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0"
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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/forgekeep/nebula-mesh/security/advisories/GHSA-339v-266x-79xr",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-339v-266x-79xr"
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},
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{
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"name": "https://github.com/forgekeep/nebula-mesh/issues/178",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/forgekeep/nebula-mesh/issues/178"
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},
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{
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"name": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.7"
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}
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],
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"affected": [
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{
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"vendor": "forgekeep",
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"product": "nebula-mesh",
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"versions": [
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{
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"version": "< 0.3.7",
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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": "2026-09-04T19:40:16.908Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. Prior to version 0.3.7, two related authorization gaps let a host that should no longer be trusted obtain a fresh, valid Nebula certificate, because nebula-mgmt does not re-evaluate revocation/authorization state at certificate issuance time — only at poll time. Firstly, the blocklist is not enforced at sign / re-enroll time. internal/api/enroll.go:128 calls caMgr.Sign(...) without consulting the blocklist. The blocklist is only checked in the poll path (internal/api/updates.go:57, fingerprintInBlocklist). The blocklist is keyed by certificate fingerprint (internal/store/sqlite.go), so a re-enrollment produces a new fingerprint that is not in the blocklist. Secondly, renewal does not re-validate operator / CA status. Auto-renewal at poll time (internal/api/updates.go:285-319, signHostCert) reads host.Name, host.Groups, host.NebulaIPs from the DB and re-signs without checking whether the owning operator is still active or the CA still valid. DisableOperator (internal/store/sqlite_operators.go) revokes sessions and API keys but does not retire the operator's CAs, and pki/signer.go checks only CA cert time-expiry, not operator/CA status. This issue has been patched in version 0.3.7."
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}
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],
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"source": {
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"advisory": "GHSA-339v-266x-79xr",
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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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"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": "2026-09-04T19:49:54.943637Z",
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"id": "CVE-2026-53602",
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"options": [
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{
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"Exploitation": "none"
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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": "2026-09-04T19:50:03.057Z"
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}
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}
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]
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}
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} |