{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59901", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-07T16:40:07.984Z", "datePublished": "2026-07-29T17:48:39.621Z", "dateUpdated": "2026-07-29T18:09:41.130Z"}, "containers": {"cna": {"title": "Netty Bzip2Decoder: Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang", "problemTypes": [{"descriptions": [{"cweId": "CWE-835", "lang": "en", "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "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", "version": "4.0"}}], "references": [{"name": "https://github.com/netty/netty/security/advisories/GHSA-558v-64gr-wgg4", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/netty/netty/security/advisories/GHSA-558v-64gr-wgg4"}], "affected": [{"vendor": "netty", "product": "netty", "versions": [{"version": ">=4.2.0.Final, < 4.2.16.Final", "status": "affected"}, {"version": "< 4.1.136.Final", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-29T17:48:39.621Z"}, "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final."}], "source": {"advisory": "GHSA-558v-64gr-wgg4", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-29T18:09:34.049451Z", "id": "CVE-2026-59901", "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": "2026-07-29T18:09:41.130Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-59901", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T18:09:34.049451Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-29T18:09:37.981Z"}}], "cna": {"title": "Netty Bzip2Decoder: Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang", "source": {"advisory": "GHSA-558v-64gr-wgg4", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "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", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE"}}], "affected": [{"vendor": "netty", "product": "netty", "versions": [{"status": "affected", "version": ">=4.2.0.Final, < 4.2.16.Final"}, {"status": "affected", "version": "< 4.1.136.Final"}]}], "references": [{"url": "https://github.com/netty/netty/security/advisories/GHSA-558v-64gr-wgg4", "name": "https://github.com/netty/netty/security/advisories/GHSA-558v-64gr-wgg4", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-835", "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-29T17:48:39.621Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59901", "state": "PUBLISHED", "dateUpdated": "2026-07-29T18:09:41.130Z", "dateReserved": "2026-07-07T16:40:07.984Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-29T17:48:39.621Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{"bugzilla": {"description": "io.netty/netty-codec-compression: Netty: Infinite loop in netty-codec-compression (bzip2)", "id": "2507481", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507481"}, "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:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["A flaw was found in the netty-codec-compression component of Netty. This vulnerability, caused by a logic error in the bzip2 decoder, allows a remote attacker to send specially crafted bzip2-compressed data. Processing this malformed data can trigger an infinite loop, causing the decoder thread to consume excessive CPU resources. This leads to a denial of service (DoS), requiring manual intervention to restore service."], "name": "CVE-2026-59901", "package_state": [{"cpe": "cpe:/a:redhat:apache_camel_hawtio:4", "fix_state": "Affected", "impact": "moderate", "package_name": "netty-codec-compression", "product_name": "Red Hat build of Apache Camel - HawtIO 4"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Affected", "impact": "moderate", "package_name": "netty-codec-compression", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "impact": "moderate", "package_name": "netty-codec-compression", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "impact": "moderate", "package_name": "devspaces/multicluster-redirector-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "impact": "moderate", "package_name": "devspaces/server-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Affected", "impact": "moderate", "package_name": "netty-codec-compression", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-59901\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59901"], "threat_severity": "Important"}

{}