{"api_version":"1","generated_at":"2026-07-24T18:34:16+00:00","cve":"CVE-2026-33247","urls":{"html":"https://cve.report/CVE-2026-33247","api":"https://cve.report/api/cve/CVE-2026-33247.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-33247","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-33247"},"summary":{"title":"NATS credentials are exposed in monitoring port via command-line argv","description":"NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, if a nats-server is run with static credentials for all clients provided via argv (the command-line), then those credentials are visible to any user who can see the monitoring port, if that too is enabled. The `/debug/vars` end-point contains an unredacted copy of argv. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, configure credentials inside a configuration file instead of via argv, and do not enable the monitoring port if using secrets in argv. Best practice remains to not expose the monitoring port to the Internet, or to untrusted network sources.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-03-25 20:16:33","updated_at":"2026-07-20 12:18:41"},"problem_types":["CWE-215","CWE-214","CWE-215 CWE-215: Insertion of Sensitive Information Into Debugging Code","CWE-214 Invocation of Process Using Visible Sensitive Information"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"ADP","type":"CVSS","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}},{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"7.4","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.4","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv","name":"https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv","refsource":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33247.json","name":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33247.json","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://advisories.nats.io/CVE/secnote-2026-14.txt","name":"https://advisories.nats.io/CVE/secnote-2026-14.txt","refsource":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2026:21769","name":"https://access.redhat.com/errata/RHSA-2026:21769","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/security/cve/CVE-2026-33247","name":"https://access.redhat.com/security/cve/CVE-2026-33247","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451486","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2451486","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2026:23345","name":"https://access.redhat.com/errata/RHSA-2026:23345","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2026:22347","name":"https://access.redhat.com/errata/RHSA-2026:22347","refsource":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-33247","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33247","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"nats-io","product":"nats-server","version":"affected < 2.11.15","platforms":[]},{"source":"CNA","vendor":"nats-io","product":"nats-server","version":"affected >= 2.12.0-RC.1, < 2.12.6","platforms":[]},{"source":"ADP","vendor":"Red Hat","product":"Multicluster Global Hub 1.5.4","version":"unaffected 1778867753 * rpm","platforms":[]},{"source":"ADP","vendor":"Red Hat","product":"Multicluster Global Hub 1.6.2","version":"unaffected 1780167118 * rpm","platforms":[]},{"source":"ADP","vendor":"Red Hat","product":"Red Hat multicluster global hub 1.4.3","version":"unaffected 1779579439 * rpm","platforms":[]},{"source":"ADP","vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","version":"","platforms":[]}],"timeline":[{"source":"ADP","time":"2026-03-25T21:02:07.985Z","lang":"en","value":"Reported to Red Hat."},{"source":"ADP","time":"2026-03-25T20:02:18.868Z","lang":"en","value":"Made public."}],"solutions":[{"source":"ADP","title":"","value":"RHSA-2026:22347: Multicluster Global Hub 1.4.5","time":"","lang":"en"},{"source":"ADP","title":"","value":"RHSA-2026:23345: Multicluster Global Hub 1.6.2","time":"","lang":"en"},{"source":"ADP","title":"","value":"RHSA-2026:21769: Red Hat multicluster global hub 1.5.2","time":"","lang":"en"}],"workarounds":[{"source":"ADP","title":"","value":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"33247","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"linuxfoundation","cpe5":"nats-server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-33247","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-03-26T19:36:35.906107Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-03-26T19:52:12.479Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"},{"affected":[{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:multicluster_globalhub:1.5::el9"],"defaultStatus":"affected","packageName":"multicluster-globalhub/multicluster-globalhub-grafana-rhel9","product":"Multicluster Global Hub 1.5.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1778867753","versionType":"rpm"}]},{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_globalhub:1.6::el9"],"defaultStatus":"affected","packageName":"multicluster-globalhub/multicluster-globalhub-grafana-rhel9","product":"Multicluster Global Hub 1.6.2","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1780167118","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:multicluster_globalhub:1.4::el9"],"defaultStatus":"affected","packageName":"multicluster-globalhub/multicluster-globalhub-grafana-rhel9","product":"Red Hat multicluster global hub 1.4.3","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1779579439","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"openshift4/oc-mirror-plugin-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}],"datePublic":"2026-03-25T20:02:18.868Z","descriptions":[{"lang":"en","value":"A flaw was found in NATS-Server. If the NATS-Server is configured with static credentials provided through command-line arguments (argv) and the monitoring port is enabled, a remote attacker with access to the monitoring port can view these credentials. The /debug/vars endpoint on the monitoring port exposes an unredacted copy of the command-line arguments, leading to information disclosure of sensitive authentication details."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-214","description":"Invocation of Process Using Visible Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-20T12:04:44.587Z","orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP"},"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-33247"},{"name":"RHBZ#2451486","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451486"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33247.json"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:22347"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:23345"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:21769"}],"solutions":[{"lang":"en","value":"RHSA-2026:22347: Multicluster Global Hub 1.4.5"},{"lang":"en","value":"RHSA-2026:23345: Multicluster Global Hub 1.6.2"},{"lang":"en","value":"RHSA-2026:21769: Red Hat multicluster global hub 1.5.2"}],"timeline":[{"lang":"en","time":"2026-03-25T21:02:07.985Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-03-25T20:02:18.868Z","value":"Made public."}],"title":"github.com/nats-io/nats-server: NATS-Server: Information disclosure of credentials via monitoring port and command-line arguments","workarounds":[{"lang":"en","value":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}],"x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"}}],"cna":{"affected":[{"product":"nats-server","vendor":"nats-io","versions":[{"status":"affected","version":"< 2.11.15"},{"status":"affected","version":">= 2.12.0-RC.1, < 2.12.6"}]}],"descriptions":[{"lang":"en","value":"NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, if a nats-server is run with static credentials for all clients provided via argv (the command-line), then those credentials are visible to any user who can see the monitoring port, if that too is enabled. The `/debug/vars` end-point contains an unredacted copy of argv. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, configure credentials inside a configuration file instead of via argv, and do not enable the monitoring port if using secrets in argv. Best practice remains to not expose the monitoring port to the Internet, or to untrusted network sources."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-215","description":"CWE-215: Insertion of Sensitive Information Into Debugging Code","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-03-25T20:02:18.868Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv"},{"name":"https://advisories.nats.io/CVE/secnote-2026-14.txt","tags":["x_refsource_MISC"],"url":"https://advisories.nats.io/CVE/secnote-2026-14.txt"}],"source":{"advisory":"GHSA-x6g4-f6q3-fqvv","discovery":"UNKNOWN"},"title":"NATS credentials are exposed in monitoring port via command-line argv"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-33247","datePublished":"2026-03-25T20:02:18.868Z","dateReserved":"2026-03-18T02:42:27.509Z","dateUpdated":"2026-07-20T12:04:44.587Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-25 20:16:33","lastModifiedDate":"2026-07-20 12:18:41","problem_types":["CWE-215","CWE-214","CWE-215 CWE-215: Insertion of Sensitive Information Into Debugging Code","CWE-214 Invocation of Process Using Visible Sensitive Information"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":5.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":3.6},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-03-26T19:36:35.906107Z","id":"CVE-2026-33247","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*","versionEndExcluding":"2.11.15","matchCriteriaId":"13EA156E-2759-4586-A22E-CDEAAD4D610C"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*","versionStartIncluding":"2.12.0","versionEndExcluding":"2.12.6","matchCriteriaId":"4E347CFB-C56D-4FD8-8DD8-3D34C08D7154"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"33247","Ordinal":"1","Title":"NATS credentials are exposed in monitoring port via command-line","CVE":"CVE-2026-33247","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"33247","Ordinal":"1","NoteData":"NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, if a nats-server is run with static credentials for all clients provided via argv (the command-line), then those credentials are visible to any user who can see the monitoring port, if that too is enabled. The `/debug/vars` end-point contains an unredacted copy of argv. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, configure credentials inside a configuration file instead of via argv, and do not enable the monitoring port if using secrets in argv. Best practice remains to not expose the monitoring port to the Internet, or to untrusted network sources.","Type":"Description","Title":"NATS credentials are exposed in monitoring port via command-line"}]}}}