{"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. \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"}}]}}