CVE-2023-47204

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

Unsafe YAML deserialization in yaml.Loader in transmute-core before 1.13.5 allows attackers to execute arbitrary Python code.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

November 2, 2023

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 7, 2026
Patch available. Sources: github_release, github_pr.
github_release Patch Available

v1.13.5

Patch available: toumorokoshi/transmute-core v1.13.5

https://github.com/toumorokoshi/transmute-core/releases/tag/v1.13.5
github_pr Patch Available

fix(yaml_serializer): use yaml.SafeLoader

Patch available: toumorokoshi/transmute-core v1.13.5 (PR #58 merged 2023-09-24)

https://github.com/toumorokoshi/transmute-core/pull/58

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
transmute-core0 ... 1.9.4 (74 versions)1.13.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 33× 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 161 total refreshes for this CVE.

  1. 2026-09-07 15:59 UTCEPSS rescore
  2. 2026-09-06 13:46 UTCEPSS rescore
  3. 2026-09-06 13:45 UTCEPSS rescore
  4. 2026-09-05 15:26 UTCEPSS rescore
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  7. 2026-09-03 14:16 UTCOSV refresh
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  24. 2026-08-18 13:46 UTCEPSS rescore
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  1. 2026-08-17 03:48 UTCOSV refresh
  2. 2026-08-16 14:54 UTCEPSS rescore
  3. 2026-08-16 02:12 UTCEPSS rescore
  4. 2026-08-15 01:28 UTCEPSS rescore
  5. 2026-08-13 21:58 UTCEPSS rescore
  6. 2026-08-12 13:49 UTCEPSS rescore
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  8. 2026-08-10 23:57 UTCEPSS rescore
  9. 2026-08-09 13:44 UTCEPSS rescore
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  11. 2026-08-08 16:35 UTCEPSS rescore
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  21. 2026-08-01 22:06 UTCOSV refresh
  22. 2026-08-01 04:14 UTCEPSS rescore
  23. 2026-07-30 16:26 UTCEPSS rescore
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  25. 2026-07-30 01:28 UTCEPSS rescore
  26. 2026-07-28 15:34 UTCEPSS rescore
  27. 2026-07-28 15:34 UTCEPSS rescore
  28. 2026-07-27 14:10 UTCEPSS rescore
  29. 2026-07-26 14:52 UTCEPSS rescore
  30. 2026-07-25 14:16 UTCEPSS rescore
  31. 2026-07-24 14:16 UTCEPSS rescore
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  33. 2026-07-23 14:16 UTCEPSS rescore
  34. 2026-07-23 02:27 UTCEG score recompute
  35. 2026-07-22 23:14 UTCEG score recompute
  36. 2026-07-22 14:06 UTCEPSS rescore
  37. 2026-07-21 15:23 UTCEPSS rescore
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  39. 2026-07-20 17:06 UTCEPSS rescore
  40. 2026-07-19 14:29 UTCEPSS rescore
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  42. 2026-07-19 02:27 UTCEPSS rescore
  43. 2026-07-18 10:03 UTCEPSS rescore
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  45. 2026-07-16 17:01 UTCEPSS rescore
  46. 2026-07-15 16:56 UTCEPSS rescore
  47. 2026-07-15 16:56 UTCEPSS rescore
  48. 2026-07-15 05:19 UTCOSV refresh
  49. 2026-07-15 01:59 UTCEPSS rescore
  50. 2026-07-15 01:59 UTCEPSS rescore
  51. 2026-07-13 22:28 UTCEPSS rescore
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  53. 2026-07-13 06:11 UTCEPSS rescore
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  55. 2026-07-12 05:45 UTCEPSS rescore
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  57. 2026-07-09 19:08 UTCEPSS rescore
  58. 2026-07-08 15:13 UTCEPSS rescore
  59. 2026-07-07 13:44 UTCEPSS rescore
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  61. 2026-07-06 16:26 UTCEPSS rescore
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  63. 2026-07-06 02:22 UTCEPSS rescore
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  65. 2026-07-04 06:29 UTCEPSS rescore
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  67. 2026-07-02 16:59 UTCEPSS rescore
  68. 2026-07-01 15:05 UTCEPSS rescore
  69. 2026-06-30 23:21 UTCEPSS rescore
  70. 2026-06-30 23:21 UTCEPSS rescore
  71. 2026-06-29 14:05 UTCEPSS rescore
  72. 2026-06-28 14:06 UTCEPSS rescore
  73. 2026-06-28 14:06 UTCEPSS rescore
  74. 2026-06-28 04:55 UTCEPSS rescore
  75. 2026-06-27 06:04 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-47204?
CVE-2023-47204 is a critical vulnerability published on November 2, 2023. Unsafe YAML deserialization in yaml.Loader in transmute-core before 1.13.5 allows attackers to execute arbitrary Python code.
When was CVE-2023-47204 disclosed?
CVE-2023-47204 was first published in the National Vulnerability Database on November 2, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-47204 actively exploited?
CVE-2023-47204 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.7% of all scored CVEs.
What is the CVSS score of CVE-2023-47204?
CVE-2023-47204 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-47204?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-47204, 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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