{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59902", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-07T16:40:07.984Z", "datePublished": "2026-08-17T17:48:55.663Z", "dateUpdated": "2026-08-18T14:50:42.964Z"}, "containers": {"cna": {"title": "Netty: Memory Exhaustion in SctpMessageCompletionHandler", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/netty/netty/security/advisories/GHSA-2qj4-mmr9-4v2f", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/netty/netty/security/advisories/GHSA-2qj4-mmr9-4v2f"}, {"name": "https://github.com/netty/netty/pull/17213", "tags": ["x_refsource_MISC"], "url": "https://github.com/netty/netty/pull/17213"}, {"name": "https://github.com/netty/netty/pull/17217", "tags": ["x_refsource_MISC"], "url": "https://github.com/netty/netty/pull/17217"}, {"name": "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7", "tags": ["x_refsource_MISC"], "url": "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7"}, {"name": "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final", "tags": ["x_refsource_MISC"], "url": "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final"}, {"name": "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final", "tags": ["x_refsource_MISC"], "url": "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final"}], "affected": [{"vendor": "netty", "product": "netty", "versions": [{"version": "< 4.1.137.Final", "status": "affected"}, {"version": ">= 4.2.0.Final, < 4.2.17.Final", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-17T17:48:55.663Z"}, "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.sctp.SctpMessageCompletionHandler limits incomplete messages and fragment counts but not maxBufferedBytes, allowing unauthenticated peers to exhaust memory with large SCTP fragments. This issue is fixed in versions 4.1.137.Final and 4.2.17.Final."}], "source": {"advisory": "GHSA-2qj4-mmr9-4v2f", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-18T14:50:31.669752Z", "id": "CVE-2026-59902", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-18T14:50:42.964Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-59902", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-18T14:50:31.669752Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-18T14:50:36.729Z"}}], "cna": {"title": "Netty: Memory Exhaustion in SctpMessageCompletionHandler", "source": {"advisory": "GHSA-2qj4-mmr9-4v2f", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "netty", "product": "netty", "versions": [{"status": "affected", "version": "< 4.1.137.Final"}, {"status": "affected", "version": ">= 4.2.0.Final, < 4.2.17.Final"}]}], "references": [{"url": "https://github.com/netty/netty/security/advisories/GHSA-2qj4-mmr9-4v2f", "name": "https://github.com/netty/netty/security/advisories/GHSA-2qj4-mmr9-4v2f", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/netty/netty/pull/17213", "name": "https://github.com/netty/netty/pull/17213", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/netty/netty/pull/17217", "name": "https://github.com/netty/netty/pull/17217", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7", "name": "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final", "name": "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final", "name": "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.sctp.SctpMessageCompletionHandler limits incomplete messages and fragment counts but not maxBufferedBytes, allowing unauthenticated peers to exhaust memory with large SCTP fragments. This issue is fixed in versions 4.1.137.Final and 4.2.17.Final."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-17T17:48:55.663Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59902", "state": "PUBLISHED", "dateUpdated": "2026-08-18T14:50:42.964Z", "dateReserved": "2026-07-07T16:40:07.984Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-17T17:48:55.663Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "netty", "vendor": "netty", "versions": [{"status": "affected", "version": "< 4.1.137.Final"}, {"status": "affected", "version": ">= 4.2.0.Final, < 4.2.17.Final"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.sctp.SctpMessageCompletionHandler limits incomplete messages and fragment counts but not maxBufferedBytes, allowing unauthenticated peers to exhaust memory with large SCTP fragments. This issue is fixed in versions 4.1.137.Final and 4.2.17.Final."}], "id": "CVE-2026-59902", "lastModified": "2026-08-18T15:16:55.777", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59902", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-18T14:50:31.669752Z", "version": "2.0.3"}}]}, "published": "2026-08-17T18:17:36.087", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7"}, {"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/pull/17213"}, {"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/pull/17217"}, {"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final"}, {"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final"}, {"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/security/advisories/GHSA-2qj4-mmr9-4v2f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4.1.137.Final)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.2.0.Final,4.2.17.Final)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "netty", "source": "cna", "vendor": "netty"}, "product": "netty", "vendor": "netty"}], "created": "2026-08-17T19:45:04.792679+00:00", "updated": "2026-08-17T20:15:06.907918+00:00", "vendors": ["netty", "netty$PRODUCT$netty"]}