{"id":"CVE-2026-49361","aliases":["EUVD-2026-33600","GHSA-4c39-fwgj-4vq7"],"status":"published","title":"Apache Fluss Netty Frame Decoder Memory Exhaustion Vulnerability","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00831,"percentile":0.57883,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-770"],"published":"2026-06-01T07:57:27Z","modified":"2026-10-28T02:31:11Z","fixes":[{"ecosystem":"Maven","package":"org.apache.fluss:fluss-common","fixed_in":["0.9.1-incubating"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.fluss:fluss-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.0-incubating-rc1"},{"fixed":"0.9.1-incubating"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.fluss:fluss-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.0-incubating-rc1"},{"fixed":"0.9.1-incubating"}]}],"versions":["0.8.0-incubating","0.9.0-incubating"]}],"products":[{"vendor":"apache","product":"fluss"},{"vendor":"apache software foundation","product":"apache fluss (incubating)"}],"references":[{"url":"https://lists.apache.org/thread/dccw6tj0njwtmvbftq13mw7fdhsok373","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/05/30/5","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49361","tags":["advisory"]},{"url":"https://github.com/apache/fluss/releases/tag/v0.9.1-incubating","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4c39-fwgj-4vq7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49361.json","tags":["advisory"]},{"url":"https://github.com/apache/fluss","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-49361","title":"Apache Fluss Netty Frame Decoder Memory Exhaustion Vulnerability","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T07:57:27.038Z","modified":"2026-06-01T16:48:51.369Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-770","CWE-400"],"updated_at":"2026-11-02T13:35:10.963527Z"}],"euvd":[{"id":"EUVD-2026-33600","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T07:57:27Z","modified":"2026-06-01T16:48:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:57.828765Z"}],"ghsa":[{"id":"GHSA-4c39-fwgj-4vq7","title":"Apache Fluss: Unauthenticated remote attackers can exhaust JVM heap memory using crafted frame headers via TabletServer/CoordinatorServer","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T09:31:15Z","modified":"2026-07-08T19:44:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:40:41.501474Z"}],"nvd":[{"id":"CVE-2026-49361","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T09:16:20.88Z","modified":"2026-07-22T07:10:00.107Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-02T14:12:21.635958Z"}],"osv":[{"id":"CVE-2026-49361","title":"Apache Fluss Netty Frame Decoder Memory Exhaustion Vulnerability","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T07:57:27.038Z","modified":"2026-10-28T02:31:11.847395033Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-02T15:45:07.060148Z"},{"id":"GHSA-4c39-fwgj-4vq7","title":"Apache Fluss: Unauthenticated remote attackers can exhaust JVM heap memory using crafted frame headers via TabletServer/CoordinatorServer","description":"Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.\n\nThis issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.\n\nUsers are recommended to upgrade to version 0.9.1, which fixes the issue.","status":"published","published":"2026-06-01T09:31:15Z","modified":"2026-07-08T20:11:36.42733Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:36.782754Z"}]}}