High severity8.6GHSA Advisory· Published May 29, 2026· Updated Jul 21, 2026
CVE-2026-44697
CVE-2026-44697
Description
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 the receiving node from a sub-50 KiB gossip payload. A single packet is sufficient to OOM-kill a validator with conventional memory provisioning. Fleet-wide application affects chain liveness. This vulnerability is fixed in 1.7.17.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/klever-io/klever-goGo | <= 1.7.16 | — |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/klever-io/klever-gopkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
<= 1.7.16+ 1 more
- (no CPE)range: <= 1.7.16
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
3News mentions
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