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Advisory record · EEF-CVE-2026-119434

Decompression bomb in ezstd:decompress_using_ddict/2 allows BEAM memory exhaustion via unbounded output buffer

CVSS 6.9 Medium

Published by OSV at 5 Nov 2026, 20:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
ezstdHex>=1.0.5, <1.2.51.2.5
Identifiers
EEF-CVE-2026-119434 · CVE-2026-119434
Weakness (CWE)
CWE-409
Tags
Published
5 Nov 2026
Updated
6 Nov 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (EEF)
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 5 Nov 2026, 20:15 UTC Confirmed by the CVE List
  2. 5 Nov 2026, 20:24 UTC First seen by agentprime
  3. 5 Nov 2026, 20:30 UTC Confirmed by OSV
  4. 5 Nov 2026, 21:18 UTC Confirmed by NVD

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.