{"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": "2026-10-21T11:32:19.591Z"}, "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"}}}}

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