CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- libp2p js-libp2p: < 11.0.26
- @libp2p floodsub: < 11.0.26
Вид слабост
История
- 17 септември 2026 Публикувано
Други уязвимости в libp2p js-libp2p
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-86040
- https://nvd.nist.gov/vuln/detail/CVE-2026-86040
- https://github.com/libp2p/js-libp2p/security/advisories/GHSA-cvfg-hcf3-ggwv
- https://github.com/libp2p/js-libp2p/pull/3568
- https://github.com/libp2p/js-libp2p/commit/fb9e8a76e9ac75924928fae4ce11d00f68320a83
- https://github.com/libp2p/js-libp2p/releases/tag/floodsub-v11.0.26