CVE-2026-82435

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82435", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-08-29T10:31:41.545Z", "datePublished": "2026-09-14T14:09:20.374Z", "dateUpdated": "2026-09-14T19:55:40.664Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-14T14:09:20.374Z"}, "title": "Apache Storm Worker: Unauthenticated Remote Memory Exhaustion in the Worker Messaging Decoder", "problemTypes": [{"descriptions": [{"description": "CWE-789 Memory allocation with excessive size value", "lang": "en", "cweId": "CWE-789", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Storm Worker", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.storm:storm-client", "versions": [{"status": "affected", "version": "3.0.0", "lessThan": "3.1.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Description\n\nThe worker's Netty message decoder is installed ahead of the SASL authentication handlers in the pipeline\nand acts on frames before any authentication has taken place. It allocated buffers sized from a\nlength field carried in the frame, so a single frame from an unauthenticated peer able to reach a worker\nslot port could drive a large allocation.\n\n`storm.messaging.netty.authentication` defaults to false, and the decoder runs before the handler that\nenforces it in any case, so no credentials are required. The attacker needs only TCP reachability to a\nworker port.\n\nThe effect of a single frame at the default 768 MB worker heap has not been measured to distinguish\nsustained worker loss from transient garbage-collection pressure. The severity assigned to this advisory\nreflects the more conservative reading; consumers who require a precise figure should test against their own\nworker heap configuration.\n\nMitigation\n\nUpgrade to 3.1.0, where frames are decoded only after the handshake completes.\n\nUsers who cannot upgrade immediately should ensure that worker slot ports are reachable only from within the\ncluster, as the security model already recommends, and should enable\n`storm.messaging.netty.authentication` where the deployment permits it.\n\nCredit\n\nThe ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<b>Description</b><br><br>The worker's Netty message decoder is installed ahead of the SASL authentication handlers in the pipeline<br>and acts on frames before any authentication has taken place. It allocated buffers sized from a<br>length field carried in the frame, so a single frame from an unauthenticated peer able to reach a worker<br>slot port could drive a large allocation.<br><br>`storm.messaging.netty.authentication` defaults to false, and the decoder runs before the handler that<br>enforces it in any case, so no credentials are required. The attacker needs only TCP reachability to a<br>worker port.<br><br>The effect of a single frame at the default 768 MB worker heap has not been measured to distinguish<br>sustained worker loss from transient garbage-collection pressure. The severity assigned to this advisory<br>reflects the more conservative reading; consumers who require a precise figure should test against their own<br>worker heap configuration.<br><br><div><b>Mitigation</b><br><br>Upgrade to 3.1.0, where frames are decoded only after the handshake completes.<br><br>Users who cannot upgrade immediately should ensure that worker slot ports are reachable only from within the<br>cluster, as the security model already recommends, and should enable<br>`storm.messaging.netty.authentication` where the deployment permits it.<br><br><b>Credit</b><br><br>The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.<br></div>"}]}], "references": [{"url": "https://lists.apache.org/thread/wqfy7qb8c76f4c3wr2w6bhoz62vcnpb7", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "important"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "The ASF using Claude Agents", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/13/15"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-14T14:13:37.157Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-14T19:55:21.391781Z", "id": "CVE-2026-82435", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-14T19:55:40.664Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82435", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-08-29T10:31:41.545Z", "datePublished": "2026-09-14T14:09:20.374Z", "dateUpdated": "2026-09-14T19:55:40.664Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-14T14:09:20.374Z"}, "title": "Apache Storm Worker: Unauthenticated Remote Memory Exhaustion in the Worker Messaging Decoder", "problemTypes": [{"descriptions": [{"description": "CWE-789 Memory allocation with excessive size value", "lang": "en", "cweId": "CWE-789", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Storm Worker", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.storm:storm-client", "versions": [{"status": "affected", "version": "3.0.0", "lessThan": "3.1.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Description\n\nThe worker's Netty message decoder is installed ahead of the SASL authentication handlers in the pipeline\nand acts on frames before any authentication has taken place. It allocated buffers sized from a\nlength field carried in the frame, so a single frame from an unauthenticated peer able to reach a worker\nslot port could drive a large allocation.\n\n`storm.messaging.netty.authentication` defaults to false, and the decoder runs before the handler that\nenforces it in any case, so no credentials are required. The attacker needs only TCP reachability to a\nworker port.\n\nThe effect of a single frame at the default 768 MB worker heap has not been measured to distinguish\nsustained worker loss from transient garbage-collection pressure. The severity assigned to this advisory\nreflects the more conservative reading; consumers who require a precise figure should test against their own\nworker heap configuration.\n\nMitigation\n\nUpgrade to 3.1.0, where frames are decoded only after the handshake completes.\n\nUsers who cannot upgrade immediately should ensure that worker slot ports are reachable only from within the\ncluster, as the security model already recommends, and should enable\n`storm.messaging.netty.authentication` where the deployment permits it.\n\nCredit\n\nThe ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<b>Description</b><br><br>The worker's Netty message decoder is installed ahead of the SASL authentication handlers in the pipeline<br>and acts on frames before any authentication has taken place. It allocated buffers sized from a<br>length field carried in the frame, so a single frame from an unauthenticated peer able to reach a worker<br>slot port could drive a large allocation.<br><br>`storm.messaging.netty.authentication` defaults to false, and the decoder runs before the handler that<br>enforces it in any case, so no credentials are required. The attacker needs only TCP reachability to a<br>worker port.<br><br>The effect of a single frame at the default 768 MB worker heap has not been measured to distinguish<br>sustained worker loss from transient garbage-collection pressure. The severity assigned to this advisory<br>reflects the more conservative reading; consumers who require a precise figure should test against their own<br>worker heap configuration.<br><br><div><b>Mitigation</b><br><br>Upgrade to 3.1.0, where frames are decoded only after the handshake completes.<br><br>Users who cannot upgrade immediately should ensure that worker slot ports are reachable only from within the<br>cluster, as the security model already recommends, and should enable<br>`storm.messaging.netty.authentication` where the deployment permits it.<br><br><b>Credit</b><br><br>The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.<br></div>"}]}], "references": [{"url": "https://lists.apache.org/thread/wqfy7qb8c76f4c3wr2w6bhoz62vcnpb7", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "important"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "The ASF using Claude Agents", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/13/15"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-14T14:13:37.157Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-82435", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-14T19:55:21.391781Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-14T19:55:37.000Z"}}]}}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.storm:storm-client", "product": "Apache Storm Worker", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "3.1.0", "status": "affected", "version": "3.0.0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Description\n\nThe worker's Netty message decoder is installed ahead of the SASL authentication handlers in the pipeline\nand acts on frames before any authentication has taken place. It allocated buffers sized from a\nlength field carried in the frame, so a single frame from an unauthenticated peer able to reach a worker\nslot port could drive a large allocation.\n\n`storm.messaging.netty.authentication` defaults to false, and the decoder runs before the handler that\nenforces it in any case, so no credentials are required. The attacker needs only TCP reachability to a\nworker port.\n\nThe effect of a single frame at the default 768 MB worker heap has not been measured to distinguish\nsustained worker loss from transient garbage-collection pressure. The severity assigned to this advisory\nreflects the more conservative reading; consumers who require a precise figure should test against their own\nworker heap configuration.\n\nMitigation\n\nUpgrade to 3.1.0, where frames are decoded only after the handshake completes.\n\nUsers who cannot upgrade immediately should ensure that worker slot ports are reachable only from within the\ncluster, as the security model already recommends, and should enable\n`storm.messaging.netty.authentication` where the deployment permits it.\n\nCredit\n\nThe ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm."}], "id": "CVE-2026-82435", "lastModified": "2026-09-14T20:58:48.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-82435", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-14T19:55:21.391781Z", "version": "2.0.3"}}]}, "published": "2026-09-14T15:17:10.620", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/wqfy7qb8c76f4c3wr2w6bhoz62vcnpb7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/09/13/15"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "security@apache.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0,3.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Apache Storm Worker", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "apache_storm_worker", "vendor": "apache_software_foundation"}], "created": "2026-09-15T13:45:07.849642+00:00", "updated": "2026-11-13T12:38:58.210098+00:00", "vendors": ["apache_software_foundation", "apache_software_foundation$PRODUCT$apache_storm_worker"]}