{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33247", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-18T02:42:27.509Z", "datePublished": "2026-03-25T20:02:18.868Z", "dateUpdated": "2026-03-25T20:02:18.868Z"}, "containers": {"cna": {"title": "NATS credentials are exposed in monitoring port via command-line argv", "problemTypes": [{"descriptions": [{"cweId": "CWE-215", "lang": "en", "description": "CWE-215: Insertion of Sensitive Information Into Debugging Code", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "nats-io", "product": "nats-server", "versions": [{"version": "< 2.11.15", "status": "affected"}, {"version": ">= 2.12.0-RC.1, < 2.12.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-25T20:02:18.868Z"}, "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."}], "source": {"advisory": "GHSA-x6g4-f6q3-fqvv", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-33247", "lastModified": "2026-03-25T20:16:33.223", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-25T20:16:33.223", "references": [{"source": "security-advisories@github.com", "url": "https://advisories.nats.io/CVE/secnote-2026-14.txt"}, {"source": "security-advisories@github.com", "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-215"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "github.com/nats-io/nats-server: NATS-Server: Information disclosure of credentials via monitoring port and command-line arguments", "id": "2451486", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451486"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-214", "details": ["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."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-33247", "package_state": [{"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Affected", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/oc-mirror-plugin-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-03-25T20:02:18Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-33247\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33247\nhttps://advisories.nats.io/CVE/secnote-2026-14.txt\nhttps://github.com/nats-io/nats-server/security/advisories/GHSA-x6g4-f6q3-fqvv"], "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-03-25T21:37:47.592842+00:00", "value": {"mitigation_remediation": ["Upgrade NATS-Server to version 2.11.15 or later, or 2.12.6 or later", "Configure credentials through a configuration file instead of passing them on the command line", "Disable the monitoring port if static credentials are used via the command line", "Limit external access to the monitoring port to trusted networks or IP addresses", "Regularly review vendor advisories for additional patches or updates"], "summary": {"action": "Apply Patch", "impact": "Information Disclosure of credentials"}, "threat_synthesis": {"affected_systems": "The vulnerability affects NATS-IO\u2019s NATS-Server product prior to versions 2.11.15 and 2.12.6. Clients that run the server with static credentials supplied on the command line are at risk. Versions 2.11.15, 2.12.6 and later contain the fix.", "description_and_impact": "Static client credentials passed to NATS-Server via the command line become visible to anyone who can access the monitoring port, because the /debug/vars endpoint reveals the raw argv arguments. This disclosure allows an attacker to capture administrator or user secrets, potentially compromising the entire messaging system. The weakness is an information exposure flaw (CWE\u2011215).", "risk_and_exploitability": "With a CVSS score of 7.4, the flaw is considered high severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog, indicating no confirmed widespread exploitation yet. However, because the monitoring port can be accessed over a network, an attacker who can reach that port could read the unredacted arguments and obtain credentials. The impact is the compromise of authentication keys, leading to unauthorized access to the NATS messaging system."}}}}, "created": "2026-03-25T21:46:19.207280+00:00", "updated": "2026-03-25T21:46:19.207312+00:00", "vendors": []}