{"id":25432,"date":"2026-09-18T00:32:34","date_gmt":"2026-09-17T16:32:34","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86040"},"modified":"2026-09-18T00:32:34","modified_gmt":"2026-09-17T16:32:34","slug":"cve-2026-86040","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86040","title":{"rendered":"CVE-2026-86040 [HIGH] &#8211; libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 11.0.26, @l"},"content":{"rendered":"<p>libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 11.0.26, @libp2p\/floodsub accepts unauthenticated RPC frames on \/floodsub\/1.0.0 through PeerStreams.attachInboundStream in packages\/floodsub\/src\/peer-streams.ts without protobuf element limits, then processRpc and processRpcSubOpt in packages\/floodsub\/src\/floodsub.ts synchronously process the subscriptions array without a per-frame cap. A single bounded-size frame can decode into millions of empty subscription entries that block the event loop, while hundreds of thousands of unique-topic SUBSCRIBE entries allocate PeerSet objects in this.topics that are not removed after peer removal or stop. Empty entries cause CPU exhaustion but do not grow this.topics; persistent memory growth requires unique topics. The subscription path bypasses message signature validation and the message-only processing queue, allowing a remote peer to cause sustained CPU denial of service, memory exhaustion, out-of-memory termination, and node unavailability. The issue is fixed in version 11.0.26.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 11.0.26, @libp2p\/floodsub accepts unauthenticated RPC frames on \/floodsub\/1.0.0 through PeerStreams.attachInboundStream i<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25432","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}