CVE-2026-54655

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 96% 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, secondary
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

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

datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodel_code_generator/parser/jsonschema.py in _get_python_type_override are inserted into generated field annotations without sufficient validation, allowing attacker-controlled JSON Schema content to execute Python code when the generated module is imported. This issue is fixed in version 0.60.2.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 28, 2026

Last Modified

July 30, 2026

Advisory Details (3)

Auto-updated Jul 28, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

0.60.2

Patch available: koxudaxi/datamodel-code-generator 0.60.2

https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2
github_commit Patch Available

commit 2c93c9b712f4 (koxudaxi/datamodel-code-generator)

Patch available: koxudaxi/datamodel-code-generator 0.60.2 (contains commit 2c93c9b712f4)

https://github.com/koxudaxi/datamodel-code-generator/commit/2c93c9b712f43391dcfa975a1e4aa0b7c93ccbba
github Patch Available🟡 PoC Available

Code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator · Advisory · koxudaxi/datamodel-code-generator · GitHub

https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-m34r-v34r-rf9q

Vendor Advisories for CVE-2026-54655(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
datamodel-code-generator0.51.0 ... 0.60.1 (16 versions)0.60.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 47× 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. 2026-09-15 08:32 UTCEG score recompute
  2. 2026-09-15 03:11 UTCEPSS rescore
  3. 2026-09-13 22:35 UTCEG score recompute
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-12 21:42 UTCEG score recompute
  6. 2026-09-11 20:57 UTCEG score recompute
  7. 2026-09-10 20:11 UTCEG score recompute
  8. 2026-09-10 09:35 UTCEPSS rescore
  9. 2026-09-09 07:58 UTCEG score recompute
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-07 20:54 UTCEG score recompute
  12. 2026-09-07 16:01 UTCEPSS rescore
  13. 2026-09-06 22:47 UTCEG score recompute
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-05 19:09 UTCEG score recompute
  16. 2026-09-05 05:24 UTCEG score recompute
  17. 2026-09-04 11:59 UTCEG score recompute
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-01 22:50 UTCEG score recompute
  21. 2026-09-01 13:54 UTCEPSS rescore
  22. 2026-09-01 04:40 UTCEPSS rescore
  23. 2026-08-31 00:21 UTCEG score recompute
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 11:59 UTCEG score recompute
Show 63 more
  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:28 UTCEG score recompute
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-27 21:54 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 19:40 UTCEG score recompute
  7. 2026-08-26 14:46 UTCEPSS rescore
  8. 2026-08-25 18:43 UTCEG score recompute
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-24 17:56 UTCEG score recompute
  11. 2026-08-23 04:20 UTCEG score recompute
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-22 03:35 UTCEG score recompute
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 02:50 UTCEG score recompute
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 00:55 UTCEG score recompute
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-19 00:02 UTCEG score recompute
  20. 2026-08-18 13:48 UTCEPSS rescore
  21. 2026-08-17 23:14 UTCEG score recompute
  22. 2026-08-17 13:47 UTCEPSS rescore
  23. 2026-08-16 22:29 UTCEG score recompute
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 10:07 UTCEG score recompute
  26. 2026-08-16 02:14 UTCEPSS rescore
  27. 2026-08-15 09:23 UTCEG score recompute
  28. 2026-08-15 01:30 UTCEPSS rescore
  29. 2026-08-14 08:39 UTCEG score recompute
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-12 19:31 UTCEG score recompute
  32. 2026-08-12 13:51 UTCEPSS rescore
  33. 2026-08-11 18:46 UTCEG score recompute
  34. 2026-08-11 06:24 UTCEG score recompute
  35. 2026-08-11 00:00 UTCEPSS rescore
  36. 2026-08-09 17:17 UTCEG score recompute
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-09 04:55 UTCEG score recompute
  39. 2026-08-08 16:37 UTCEPSS rescore
  40. 2026-08-08 04:10 UTCEG score recompute
  41. 2026-08-06 15:04 UTCEG score recompute
  42. 2026-08-06 13:47 UTCEPSS rescore
  43. 2026-08-06 02:39 UTCEG score recompute
  44. 2026-08-05 19:17 UTCEPSS rescore
  45. 2026-08-05 00:54 UTCEG score recompute
  46. 2026-08-04 15:10 UTCEPSS rescore
  47. 2026-08-04 12:32 UTCEG score recompute
  48. 2026-08-04 10:39 UTCEPSS rescore
  49. 2026-08-03 10:54 UTCEG score recompute
  50. 2026-08-03 10:36 UTCEPSS rescore
  51. 2026-08-02 10:06 UTCEG score recompute
  52. 2026-08-02 02:27 UTCEPSS rescore
  53. 2026-08-01 09:22 UTCEG score recompute
  54. 2026-08-01 04:16 UTCEPSS rescore
  55. 2026-07-30 20:13 UTCEG score recompute
  56. 2026-07-30 16:28 UTCEPSS rescore
  57. 2026-07-30 14:03 UTCEG score recompute
  58. 2026-07-30 01:41 UTCEG score recompute
  59. 2026-07-30 01:30 UTCEPSS rescore
  60. 2026-07-29 13:19 UTCEG score recompute
  61. 2026-07-28 22:26 UTCEG score recompute
  62. 2026-07-28 21:55 UTCEG score recompute
  63. 2026-07-28 21:52 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54655?
CVE-2026-54655 is a high vulnerability published on July 28, 2026. datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodelcodegenerator/parser/jsonschema.py in getpythontypeoverride are inserted into generated field annotations without sufficient validation, allowing…
When was CVE-2026-54655 disclosed?
CVE-2026-54655 was first published in the National Vulnerability Database on July 28, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54655 actively exploited?
CVE-2026-54655 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 95.9% of all scored CVEs.
What is the CVSS score of CVE-2026-54655?
CVE-2026-54655 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-54655?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54655, 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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