CVE-2024-5452

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 58.7%, top 2% 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: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 26%CVSS: 9.8Exploit: NoneExposed: 0

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

A remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserialized user input and mismanagement of dunder attributes by the deepdiff library. The library uses deepdiff.Delta objects to modify application state based on frontend actions. However, it is possible to bypass the intended restrictions on modifying dunder attributes, allowing an attacker to construct a serialized delta that passes the deserializer whitelist and contains dunder attributes. When processed, this can be exploited to access other modules, classes, and instances, leading to arbitrary attribute write and total RCE on any self-hosted pytorch-lightning application in its default configuration, as the delta endpoint is enabled by default.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
97.8%
KEV
Not listed

Published

June 6, 2024

Last Modified

October 15, 2025

Advisory Details (1)

Auto-updated Jul 4, 2026
No patch confirmed yet.
generic

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Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
lightning1.8.0 ... 2.3.2 (68 versions)2.3.3—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 32× 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. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-09 19:09 UTCEPSS rescore
  3. 2026-07-09 19:09 UTCEPSS rescore
  4. 2026-07-08 15:14 UTCEPSS rescore
  5. 2026-07-06 16:26 UTCEPSS rescore
  6. 2026-07-06 16:26 UTCEPSS rescore
  7. 2026-07-05 02:29 UTCEPSS rescore
  8. 2026-07-04 06:30 UTCEPSS rescore
  9. 2026-07-04 06:30 UTCEPSS rescore
  10. 2026-07-01 15:06 UTCEPSS rescore
  11. 2026-06-30 23:21 UTCEPSS rescore
  12. 2026-06-30 23:21 UTCEPSS rescore
  13. 2026-06-28 04:55 UTCEPSS rescore
  14. 2026-06-28 04:55 UTCEPSS rescore
  15. 2026-06-27 03:08 UTCEPSS rescore
  16. 2026-06-27 03:07 UTCEPSS rescore
  17. 2026-06-26 03:46 UTCOSV refresh
  18. 2026-06-25 13:49 UTCEPSS rescore
  19. 2026-06-25 13:49 UTCEPSS rescore
  20. 2026-06-24 14:04 UTCEPSS rescore
  21. 2026-06-24 14:04 UTCEPSS rescore
  22. 2026-06-23 21:32 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-22 14:25 UTCEPSS rescore
  25. 2026-06-21 01:59 UTCEPSS rescore
Show 39 more
  1. 2026-06-18 17:52 UTCEPSS rescore
  2. 2026-06-18 17:52 UTCEPSS rescore
  3. 2026-06-17 17:52 UTCEPSS rescore
  4. 2026-06-16 17:52 UTCEPSS rescore
  5. 2026-06-15 17:48 UTCEPSS rescore
  6. 2026-06-12 23:11 UTCEPSS rescore
  7. 2026-06-12 23:11 UTCEPSS rescore
  8. 2026-06-11 13:59 UTCEPSS rescore
  9. 2026-06-11 13:59 UTCEPSS rescore
  10. 2026-06-10 22:18 UTCEPSS rescore
  11. 2026-06-10 22:18 UTCEPSS rescore
  12. 2026-06-08 15:33 UTCOSV refresh
  13. 2026-06-06 13:46 UTCEPSS rescore
  14. 2026-06-06 13:46 UTCEPSS rescore
  15. 2026-06-05 22:46 UTCEPSS rescore
  16. 2026-06-05 22:46 UTCEPSS rescore
  17. 2026-06-05 06:09 UTCEPSS rescore
  18. 2026-06-05 06:09 UTCEPSS rescore
  19. 2026-06-04 13:11 UTCEPSS rescore
  20. 2026-06-04 13:11 UTCEPSS rescore
  21. 2026-06-02 20:12 UTCEPSS rescore
  22. 2026-06-02 20:12 UTCEPSS rescore
  23. 2026-06-01 13:51 UTCEPSS rescore
  24. 2026-06-01 13:51 UTCEPSS rescore
  25. 2026-06-01 13:51 UTCEPSS rescore
  26. 2026-05-31 22:30 UTCEPSS rescore
  27. 2026-05-31 22:30 UTCEPSS rescore
  28. 2026-05-31 00:16 UTCEPSS rescore
  29. 2026-05-31 00:16 UTCEPSS rescore
  30. 2026-05-29 13:43 UTCEPSS rescore
  31. 2026-05-28 13:44 UTCEPSS rescore
  32. 2026-05-28 13:44 UTCEPSS rescore
  33. 2026-05-28 13:44 UTCEPSS rescore
  34. 2026-05-27 13:40 UTCEPSS rescore
  35. 2026-05-27 13:40 UTCEPSS rescore
  36. 2026-05-26 07:18 UTCEPSS rescore
  37. 2026-05-26 07:18 UTCEPSS rescore
  38. 2026-05-26 07:18 UTCEPSS rescore
  39. 2026-05-24 00:32 UTCEG score recompute

Frequently asked(5)

What is CVE-2024-5452?
CVE-2024-5452 is a critical vulnerability published on June 6, 2024. A remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserialized user input and mismanagement of dunder attributes by the deepdiff library. The library uses deepdiff.Delta objects to modify application state…
When was CVE-2024-5452 disclosed?
CVE-2024-5452 was first published in the National Vulnerability Database on June 6, 2024, with the most recent update on October 15, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-5452 actively exploited?
CVE-2024-5452 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-5452?
CVE-2024-5452 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-5452?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-5452, 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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