CVE-2026-44562

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% 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
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/models/import endpoint allows users with the workspace.models_import permission to overwrite any existing model in the database, regardless of ownership. When an imported model's ID matches an existing model, the endpoint merges the attacker's payload over the existing model data and writes it to the database with no ownership or access grant validation. Additionally, filter_allowed_access_grants is never called, bypassing the access grant restrictions enforced on all other model mutation endpoints. This vulnerability is fixed in 0.9.0.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
20.9%
KEV
Not listed

Published

May 15, 2026

Last Modified

May 19, 2026

Advisory Details (1)

Auto-updated May 18, 2026
Patch available. Sources: github.
github Patch Available

Model Import Overwrites Any Model Without Ownership Check · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-mqq6-cqcx-38vg

Vendor Advisories for CVE-2026-44562(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
open-webui0.1.124 ... 0.8.9 (151 versions)0.9.0—

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-44562?
CVE-2026-44562 is a medium vulnerability published on May 15, 2026. Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/models/import endpoint allows users with the workspace.modelsimport permission to overwrite any existing model in the database, regardless of ownership. When an…
When was CVE-2026-44562 disclosed?
CVE-2026-44562 was first published in the National Vulnerability Database on May 15, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44562 actively exploited?
CVE-2026-44562 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44562?
CVE-2026-44562 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-44562?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44562, 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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