CVE-2026-44697 Klever-Go MultiDataInterceptor: remote OOM via crafted compressed P2P payload

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, a remote, unauthenticated denial-of-service vulnerability in Batch.Decompress data/batch/batch.go allows any peer that participates in a topic served by MultiDataInterceptor to allocate multi-gigabyte heaps on...

EUVD-2026-33375

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, a remote, unauthenticated denial-of-service vulnerability in Batch.Decompress data/batch/batch.go allows any peer that participates in a topic served by MultiDataInterceptor to allocate multi-gigabyte heaps on...

CVE-2026-44697

CVE-2026-44697 describes a remote denial-of-service in Klever-Go where a peer can cause a receiving node to allocate multi-gigabytes of heap from a sub-50 KiB compressed gossip payload. The root cause is an unbounded gzip decompression in Batch.Decompress (Batch.Stream) via Batch.Decompress/Batch...

Protection Mechanism Failure

Overview Affected versions of this package are vulnerable to Protection Mechanism Failure through the ExecuteReadOnlyWithTypedArguments process. An attacker can cause unauthorized contract deletion or upgrade operations by invoking state-changing actions during read-only execution, thereby...

Protection Mechanism Failure

Overview Affected versions of this package are vulnerable to Protection Mechanism Failure through the ExecuteReadOnlyWithTypedArguments process. An attacker can cause unauthorized contract deletion or upgrade operations by invoking state-changing actions during read-only execution, thereby...

CVE-2026-46403

creationtimestamp| type| source ---|---|--- 2026-05-19 10:00:26+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-jc6w-wmfc-fh33...

GHSA-87M7-QFFR-542V Klever-Go MultiDataInterceptor has remote OOM via crafted compressed P2P payload

Summary A remote, unauthenticated denial-of-service vulnerability in Batch.Decompress data/batch/batch.go allows any peer that participates in a topic served by MultiDataInterceptor to allocate multi-gigabyte heaps on the receiving node from a sub-50 KiB gossip payload. A single packet is...

CVE-2026-44697

creationtimestamp| type| source ---|---|--- 2026-05-11 19:17:38+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-87m7-qffr-542v 2026-05-29 20:05:43+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mmzdjdvunn2h 2026-05-30 20:01:25+00:0...