{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31984", "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "state": "PUBLISHED", "assignerShortName": "Nozomi", "dateReserved": "2026-03-10T16:14:03.266Z", "datePublished": "2026-07-09T07:22:53.172Z", "dateUpdated": "2026-07-09T07:22:53.172Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "shortName": "Nozomi", "dateUpdated": "2026-07-09T07:22:53.172Z"}, "title": "DoS through oversized audit log entries in Guardian/CMC before 26.2.0", "datePublic": "2026-07-07T07:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-770", "description": "CWE-770 Allocation of resources without limits or throttling", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-130", "descriptions": [{"lang": "en", "value": "CAPEC-130 Excessive Allocation"}]}], "affected": [{"vendor": "Nozomi Networks", "product": "Guardian", "versions": [{"status": "affected", "version": "0", "lessThan": "26.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Nozomi Networks", "product": "CMC", "versions": [{"status": "affected", "version": "0", "lessThan": "26.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nozomi_networks:guardian:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "26.2.0"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nozomi_networks:cmc:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "26.2.0"}]}]}], "descriptions": [{"lang": "en", "value": "A denial-of-service vulnerability caused by unbounded resource allocation was discovered in the audit logging functionality, due to a missing size limit on input recorded into audit entries. An unauthenticated attacker can submit requests containing excessively large input that is recorded into audit entries, possibly exhausting the available disk space and rendering the system inoperable.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A denial-of-service vulnerability caused by unbounded resource allocation was discovered in the audit logging functionality, due to a missing size limit on input recorded into audit entries. An unauthenticated attacker can submit requests containing excessively large input that is recorded into audit entries, possibly exhausting the available disk space and rendering the system inoperable."}]}], "references": [{"url": "https://security.nozominetworks.com/NN-2026:11-01"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "workarounds": [{"lang": "en", "value": "Use internal firewall features to limit access to the web management interface.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Use internal firewall features to limit access to the web management interface.<br>"}]}], "solutions": [{"lang": "en", "value": "Upgrade to v26.2.0 or later.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Upgrade to v26.2.0 or later.<br>"}]}], "credits": [{"lang": "en", "value": "This issue was found by Andrea Palanca of Nozomi Networks Product Security team during an internal investigation.", "type": "finder"}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,26.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CMC", "source": "cna", "vendor": "Nozomi Networks"}, "product": "cmc", "vendor": "nozomi_networks"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,26.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Guardian", "source": "cna", "vendor": "Nozomi Networks"}, "product": "guardian", "vendor": "nozomi_networks"}], "created": "2026-07-09T12:15:03.584210+00:00", "updated": "2026-07-09T12:15:03.584253+00:00", "vendors": ["nozomi_networks", "nozomi_networks$PRODUCT$cmc", "nozomi_networks$PRODUCT$guardian"]}