CVE-2026-5536

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory published 2026-04-05. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

April 5, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Apr 30, 2026
No patch confirmed yet.
generic

Remote Code Execution via gRPC Pickle Deserialization in Fedml · Issue #26 · AnalogyC0de/public_exp · GitHub

https://github.com/AnalogyC0de/public_exp/issues/26

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 51× 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.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 09:10 UTCEG score recompute
  5. 2026-07-26 09:10 UTCGHSA enrichment
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:18 UTCEPSS rescore
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  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 14:18 UTCEPSS rescore
  12. 2026-07-23 03:20 UTCEG score recompute
  13. 2026-07-22 14:08 UTCEPSS rescore
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  15. 2026-07-21 15:25 UTCEPSS rescore
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  18. 2026-07-19 14:31 UTCEPSS rescore
  19. 2026-07-19 02:29 UTCEPSS rescore
  20. 2026-07-18 10:04 UTCEPSS rescore
  21. 2026-07-17 02:54 UTCOSV refresh
  22. 2026-07-16 17:03 UTCEPSS rescore
  23. 2026-07-15 16:57 UTCEPSS rescore
  24. 2026-07-15 16:57 UTCEPSS rescore
  25. 2026-07-15 02:00 UTCEPSS rescore
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  1. 2026-07-15 02:00 UTCEPSS rescore
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  5. 2026-07-12 05:46 UTCEPSS rescore
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  8. 2026-07-09 19:10 UTCEPSS rescore
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  24. 2026-06-29 14:06 UTCEPSS rescore
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  26. 2026-06-28 04:56 UTCEPSS rescore
  27. 2026-06-27 03:08 UTCEPSS rescore
  28. 2026-06-25 13:49 UTCEPSS rescore
  29. 2026-06-24 14:05 UTCEPSS rescore
  30. 2026-06-23 21:33 UTCEPSS rescore
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  32. 2026-06-22 14:25 UTCEPSS rescore
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  36. 2026-06-21 01:59 UTCEPSS rescore
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  38. 2026-06-19 19:26 UTCEPSS rescore
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  40. 2026-06-18 17:52 UTCEPSS rescore
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  42. 2026-06-17 17:53 UTCEPSS rescore
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  44. 2026-06-15 17:49 UTCEPSS rescore
  45. 2026-06-15 17:49 UTCEPSS rescore
  46. 2026-06-14 23:18 UTCEPSS rescore
  47. 2026-06-13 23:00 UTCEPSS rescore
  48. 2026-06-12 23:12 UTCEPSS rescore
  49. 2026-06-12 23:12 UTCEPSS rescore
  50. 2026-06-11 21:48 UTCGHSA enrichment
  51. 2026-06-11 14:00 UTCEPSS rescore
  52. 2026-06-10 22:19 UTCEPSS rescore
  53. 2026-06-10 15:27 UTCGHSA enrichment
  54. 2026-06-10 13:22 UTCEPSS rescore
  55. 2026-06-10 02:52 UTCGHSA enrichment
  56. 2026-06-09 14:18 UTCGHSA enrichment
  57. 2026-06-08 14:17 UTCEPSS rescore
  58. 2026-06-08 12:30 UTCGHSA enrichment
  59. 2026-06-07 23:18 UTCGHSA enrichment
  60. 2026-06-07 23:17 UTCGHSA enrichment
  61. 2026-06-07 15:25 UTCEPSS rescore
  62. 2026-06-07 10:43 UTCGHSA enrichment
  63. 2026-06-06 13:47 UTCEPSS rescore
  64. 2026-06-05 22:47 UTCEPSS rescore
  65. 2026-06-05 06:10 UTCEPSS rescore
  66. 2026-06-05 06:10 UTCEPSS rescore
  67. 2026-06-04 13:12 UTCEPSS rescore
  68. 2026-06-04 13:12 UTCEPSS rescore
  69. 2026-06-02 20:13 UTCEPSS rescore
  70. 2026-06-01 13:52 UTCEPSS rescore
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  72. 2026-05-31 22:30 UTCEPSS rescore
  73. 2026-05-31 22:30 UTCEPSS rescore
  74. 2026-05-31 00:16 UTCEPSS rescore
  75. 2026-05-31 00:16 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-5536?
CVE-2026-5536 is a high vulnerability published on April 5, 2026. A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this…
When was CVE-2026-5536 disclosed?
CVE-2026-5536 was first published in the National Vulnerability Database on April 5, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5536 actively exploited?
CVE-2026-5536 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.6% of all scored CVEs.
What is the CVSS score of CVE-2026-5536?
CVE-2026-5536 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-5536?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5536, 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.

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