{"schemaVersion":3,"id":"CVE-2026-107227","aliases":["UBUNTU-CVE-2026-107227","DEBIAN-CVE-2026-107227","CGA-36jv-fpw6-p4jx","CGA-77r3-9mq3-4v7g","CGA-gv9r-3q2w-rmfw","CGA-hpfg-2cpc-96p4","CGA-m9vr-m84w-5hpf","CGA-v32w-hcq4-68vx","CGA-3775-mg57-4wjf","CGA-37wm-4c5g-q7w4","CGA-9px6-vgjr-8mg8","CGA-c2pq-jq87-r5xq","CGA-cmjr-h5xp-hxvp","CGA-fcgh-5m7r-j725","CGA-j3r8-prf2-h525","GHSA-x8v2-478q-2hvg","CGA-qw42-fhq2-2w5x","CGA-r27v-jf73-p997","CGA-v3xc-rh5h-hfqg"],"status":"published","duplicateOf":null,"title":null,"description":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pipeline aggregates compressed frames before WebSocketClientCompressionHandler inflates them, so webSocketMaxFrameSize and webSocketMaxBufferSize do not bound decompressed output. A malicious WebSocket peer can send a small compressed message that expands to a very large Netty buffer and exhausts JVM heap. This issue is fixed in version 3.0.14.","dates":{"published":"2026-10-07T20:51:04.823Z","modified":"2026-10-08T14:02:28.739Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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