CVE-2026-53423

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 97% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:eef, epss
Elevated
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Allocation of Resources Without Limits or Throttling vulnerability in membraneframework membrane_mp4_plugin allows unauthenticated denial-of-service via BEAM atom table exhaustion.

The MP4 box header parser converts each 4-byte box name to an atom using String.to_atom/1 without validation. 'Elixir.Membrane.MP4.Container.Header':parse_box_name/1 in lib/membrane_mp4/container/header.ex interns every box name encountered while 'Elixir.Membrane.MP4.Container.Header':parse/1 walks the input. BEAM atoms are never garbage-collected, so each unique attacker-controlled 4-byte name is a permanent allocation. A crafted MP4 of approximately 8 MB containing roughly 1.1 million boxes with distinct non-standard names exhausts the atom table (default ceiling around 1,048,576 atoms), aborting the entire BEAM node and taking down all applications running on it.

This issue affects membrane_mp4_plugin from 0.3.0 before 0.36.7.

CVSS v3
5.9
EG Score
5.9(medium)
EPSS
2.7%
KEV
Not listed

Published

June 11, 2026

Last Modified

June 12, 2026

Advisory Details (4)

Auto-updated Jun 13, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Unauthenticated denial-of-service via BEAM atom table exhaustion in membrane_mp4_plugin · Advisory · membraneframework/membrane_mp4_plugin · GitHub

https://github.com/membraneframework/membrane_mp4_plugin/security/advisories/GHSA-43hj-fxwj-49qw
generic

OSV - Open Source Vulnerabilities

https://osv.dev/vulnerability/EEF-CVE-2026-53423
github_commit Patch Available

commit 56373d1ddc86 (membraneframework/membrane_mp4_plugin)

Patch available: membraneframework/membrane_mp4_plugin v0.36.7 (contains commit 56373d1ddc86)

https://github.com/membraneframework/membrane_mp4_plugin/commit/56373d1ddc86968e55fbde795c14eeba24357b57
generic

Unauthenticated denial-of-service via BEAM atom table exhaustion in membrane_mp4_plugin | Erlang Ecosystem Foundation CNA

https://cna.erlef.org/cves/CVE-2026-53423.html

Affected Packages

(1 across 1 ecosystem)
Hex(1)
PackageVulnerable rangeFixed inDependents
membrane_mp4_plugin0.10.0 ... 0.9.0 (59 versions)0.36.7—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 69× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-08 15:16 UTCEPSS rescore
  2. 2026-07-08 15:16 UTCEPSS rescore
  3. 2026-07-08 03:20 UTCEG score recompute
  4. 2026-07-07 13:46 UTCEPSS rescore
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  6. 2026-07-07 03:17 UTCEG score recompute
  7. 2026-07-06 16:27 UTCEPSS rescore
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  9. 2026-07-06 02:23 UTCEPSS rescore
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  11. 2026-07-05 14:12 UTCEG score recompute
  12. 2026-07-05 02:31 UTCEPSS rescore
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  14. 2026-07-04 14:30 UTCEG score recompute
  15. 2026-07-04 06:31 UTCEPSS rescore
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  17. 2026-07-03 14:52 UTCEG score recompute
  18. 2026-07-02 13:34 UTCEG score recompute
  19. 2026-07-01 13:24 UTCEG score recompute
  20. 2026-06-30 13:40 UTCEG score recompute
  21. 2026-06-29 14:06 UTCEPSS rescore
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  23. 2026-06-29 11:07 UTCEG score recompute
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 11:28 UTCEG score recompute
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  1. 2026-06-28 04:56 UTCEPSS rescore
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  3. 2026-06-27 11:50 UTCEG score recompute
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-26 12:12 UTCEG score recompute
  6. 2026-06-25 13:49 UTCEPSS rescore
  7. 2026-06-25 10:35 UTCEG score recompute
  8. 2026-06-24 14:05 UTCEPSS rescore
  9. 2026-06-24 10:56 UTCEG score recompute
  10. 2026-06-23 21:33 UTCEPSS rescore
  11. 2026-06-23 21:33 UTCEPSS rescore
  12. 2026-06-23 11:17 UTCEG score recompute
  13. 2026-06-22 14:25 UTCEPSS rescore
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  15. 2026-06-22 11:32 UTCEG score recompute
  16. 2026-06-21 14:56 UTCEPSS rescore
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 10:03 UTCEG score recompute
  19. 2026-06-21 01:59 UTCEPSS rescore
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  21. 2026-06-20 10:16 UTCEG score recompute
  22. 2026-06-19 19:26 UTCEPSS rescore
  23. 2026-06-19 19:26 UTCEPSS rescore
  24. 2026-06-19 10:37 UTCEG score recompute
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-18 17:52 UTCEPSS rescore
  27. 2026-06-18 10:54 UTCEG score recompute
  28. 2026-06-17 17:53 UTCEPSS rescore
  29. 2026-06-17 11:04 UTCEG score recompute
  30. 2026-06-16 17:53 UTCEPSS rescore
  31. 2026-06-16 11:24 UTCEG score recompute
  32. 2026-06-15 17:49 UTCEPSS rescore
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  34. 2026-06-15 11:46 UTCEG score recompute
  35. 2026-06-14 23:18 UTCEPSS rescore
  36. 2026-06-14 12:06 UTCEG score recompute
  37. 2026-06-13 23:00 UTCEPSS rescore
  38. 2026-06-13 12:28 UTCEG score recompute
  39. 2026-06-12 23:12 UTCEPSS rescore
  40. 2026-06-12 23:12 UTCEPSS rescore
  41. 2026-06-12 12:50 UTCEG score recompute
  42. 2026-06-11 14:00 UTCEPSS rescore
  43. 2026-06-11 13:11 UTCEG score recompute
  44. 2026-06-11 13:11 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53423?
CVE-2026-53423 is a medium vulnerability published on June 11, 2026. Allocation of Resources Without Limits or Throttling vulnerability in membraneframework membranemp4plugin allows unauthenticated denial-of-service via BEAM atom table exhaustion. The MP4 box header parser converts each 4-byte box name to an atom using String.toatom/1 without validation.…
When was CVE-2026-53423 disclosed?
CVE-2026-53423 was first published in the National Vulnerability Database on June 11, 2026, with the most recent update on June 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53423 actively exploited?
CVE-2026-53423 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53423?
CVE-2026-53423 has a CVSS v4.0 base score of 5.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53423?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53423, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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