CVE-2026-54426

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54426", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-06-14T07:05:33.297Z", "datePublished": "2026-10-21T11:32:19.591Z", "dateUpdated": "2026-10-30T13:46:51.555Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-21T11:32:19.591Z"}, "title": "Apache bRPC: Stack Exhaustion via Unbounded Recursion in Redis Reply Parser", "problemTypes": [{"descriptions": [{"description": "CWE-674 Uncontrolled Recursion", "lang": "en", "cweId": "CWE-674", "type": "CWE"}]}], "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache bRPC", "packageURL": "pkg:github/apache/brpc", "versions": [{"status": "affected", "version": "0", "lessThan": "1.18.0", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://github.com", "packageName": "apache/brpc"}], "descriptions": [{"value": "Uncontrolled recursion in the Redis reply parser in Apache bRPC < 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit.\u00a0\n\nAffected Scenarios:\nApplications using bRPC as a Redis client with ChannelOptions.protocol=\"redis\" and receiving replies from an untrusted or faulty Redis server peer.\n\nHow to Fix:\n1. Upgrade Apache bRPC to 1.18.0.\n2. Apply the patch from PR https://github.com/apache/brpc/pull/3344 .\n\nNote:\nAfter applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Uncontrolled recursion in the Redis reply parser in Apache bRPC &lt; 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit.&nbsp;<br><br>Affected Scenarios:<br>Applications using bRPC as a Redis client with ChannelOptions.protocol=\"redis\" and receiving replies from an untrusted or faulty Redis server peer.<br><br>How to Fix:<br>1. Upgrade Apache bRPC to 1.18.0.<br>2. Apply the patch from PR <a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/apache/brpc/pull/3344\">https://github.com/apache/brpc/pull/3344</a>.<br><br>Note:<br>After applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected."}]}], "references": [{"url": "https://lists.apache.org/thread/2pf15ojj0vr7rtx95677kgtl1mx3gdgb", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "high"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Nikko Enggaliano Pratama (nikkoenggaliano@gmail.com) on Github", "type": "finder"}], "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"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"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-10-30T13:46:36.006598Z", "id": "CVE-2026-54426", "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": "2026-10-30T13:46:51.555Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54426", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-06-14T07:05:33.297Z", "datePublished": "2026-10-21T11:32:19.591Z", "dateUpdated": "2026-10-30T13:46:51.555Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-21T11:32:19.591Z"}, "title": "Apache bRPC: Stack Exhaustion via Unbounded Recursion in Redis Reply Parser", "problemTypes": [{"descriptions": [{"description": "CWE-674 Uncontrolled Recursion", "lang": "en", "cweId": "CWE-674", "type": "CWE"}]}], "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache bRPC", "packageURL": "pkg:github/apache/brpc", "versions": [{"status": "affected", "version": "0", "lessThan": "1.18.0", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://github.com", "packageName": "apache/brpc"}], "descriptions": [{"value": "Uncontrolled recursion in the Redis reply parser in Apache bRPC < 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit.\u00a0\n\nAffected Scenarios:\nApplications using bRPC as a Redis client with ChannelOptions.protocol=\"redis\" and receiving replies from an untrusted or faulty Redis server peer.\n\nHow to Fix:\n1. Upgrade Apache bRPC to 1.18.0.\n2. Apply the patch from PR https://github.com/apache/brpc/pull/3344 .\n\nNote:\nAfter applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Uncontrolled recursion in the Redis reply parser in Apache bRPC &lt; 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit.&nbsp;<br><br>Affected Scenarios:<br>Applications using bRPC as a Redis client with ChannelOptions.protocol=\"redis\" and receiving replies from an untrusted or faulty Redis server peer.<br><br>How to Fix:<br>1. Upgrade Apache bRPC to 1.18.0.<br>2. Apply the patch from PR <a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/apache/brpc/pull/3344\">https://github.com/apache/brpc/pull/3344</a>.<br><br>Note:<br>After applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected."}]}], "references": [{"url": "https://lists.apache.org/thread/2pf15ojj0vr7rtx95677kgtl1mx3gdgb", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "high"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Nikko Enggaliano Pratama (nikkoenggaliano@gmail.com) on Github", "type": "finder"}], "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "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"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-54426", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-30T13:46:36.006598Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T13:46:31.102Z"}}]}}

{"affected": [{"affectedData": [{"collectionURL": "https://github.com", "defaultStatus": "unaffected", "packageName": "apache/brpc", "packageURL": "pkg:github/apache/brpc", "product": "Apache bRPC", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "1.18.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Uncontrolled recursion in the Redis reply parser in Apache bRPC < 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcing a depth limit. The fix adds a configurable Redis reply depth limit with default value 128 and rejects replies exceeding that limit.\u00a0\n\nAffected Scenarios:\nApplications using bRPC as a Redis client with ChannelOptions.protocol=\"redis\" and receiving replies from an untrusted or faulty Redis server peer.\n\nHow to Fix:\n1. Upgrade Apache bRPC to 1.18.0.\n2. Apply the patch from PR https://github.com/apache/brpc/pull/3344 .\n\nNote:\nAfter applying the fix, Redis replies with array nesting deeper than redis_max_reply_depth are rejected."}, {"lang": "es", "value": "Recursi\u00f3n no controlada en el analizador de respuestas de Redis en Apache bRPC versiones anteriores a 1.18.0 permite que un servidor Redis remoto haga que el proceso cliente bRPC Redis se bloquee al devolver una respuesta de matriz RESP profundamente anidada. El analizador recursiona una vez por cada nivel de matriz anidada sin imponer un l\u00edmite de profundidad. La correcci\u00f3n a\u00f1ade un l\u00edmite configurable de profundidad de respuesta Redis con valor predeterminado 128 y rechaza respuestas que superen ese l\u00edmite.\\n\\nEscenarios afectados:\\nAplicaciones que usan bRPC como cliente Redis con ChannelOptions.protocol=\\\u201credis\\\u201d y reciben respuestas de un servidor Redis no confiable o defectuoso.\\n\\nC\u00f3mo corregir:\\n1. Actualizar Apache bRPC a la versi\u00f3n 1.18.0. \\n2. Aplicar el parche del PR https://github.com/apache/brpc/pull/3344.\\n\\nNota:\\nDespu\u00e9s de aplicar la correcci\u00f3n, las respuestas Redis con anidamiento de matrices superior a redis_max_reply_depth son rechazadas."}], "id": "CVE-2026-54426", "lastModified": "2026-10-30T14:17:06.137", "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54426", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T13:46:36.006598Z", "version": "2.0.3"}}]}, "published": "2026-10-21T12:17:21.180", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/2pf15ojj0vr7rtx95677kgtl1mx3gdgb"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "security@apache.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.18.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Apache bRPC", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "brpc", "vendor": "apache"}], "created": "2026-10-21T19:30:08.108727+00:00", "updated": "2026-10-30T16:30:16.137981+00:00", "vendors": ["apache", "apache$PRODUCT$brpc"]}