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Improper Handling of Highly Compressed Data (Data Amplification)

CVE-2026-44697

Low
0/10

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 sufficient to OOM-kill a validator with conventional memory provisioning. Fleet-wide application affects chain liveness.

  • LOW
  • NETWORK
  • NONE
  • CHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

The software does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

References

Advisory Timeline

  • Published