CVE-2026-59223

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (29th percentile of EPSS-scored CVEs). 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
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, WEB_FETCH_FILTER_LIST matching compared configured host entries against URL strings and non-label-boundary suffixes, allowing path-based blocklist bypasses such as !internal.example.com in a URL path and sibling-domain matches that did not reflect the intended hostname policy. This issue is fixed in version 0.10.0.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
20
EG Risk 20/100CISA SSVC

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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (4)

Auto-updated Jul 9, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)

`WEB_FETCH_FILTER_LIST` host allow/block filter bypassable via URL path and non-label-boundary matching · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-qg3f-8x3j-ggf2
github_release Patch Available

v0.10.0

Patch available: open-webui/open-webui v0.10.0

https://github.com/open-webui/open-webui/releases/tag/v0.10.0
github_pr

Match WEB_FETCH_FILTER_LIST on hostnames with label boundaries, not URL suffix

Fix merged in open-webui/open-webui PR #25949 on 2026-06-16 — awaiting tagged release

https://github.com/open-webui/open-webui/pull/25949
github_commit

commit 087878ce848a (open-webui/open-webui)

Fix landed in open-webui/open-webui commit 087878ce848a — awaiting tagged release

https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656

Vendor Advisories for CVE-2026-59223(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 rangeFix by version rangeDependents
open-webui0.1.124 ... 0.9.6 (158 versions)
  • every version up to 0.10.0: fixed in 0.10.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× 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 136 total refreshes for this CVE.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-08 17:13 UTCEPSS rescore
  4. 2026-10-07 23:48 UTCEPSS rescore
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  6. 2026-10-05 17:43 UTCEPSS rescore
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  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-10-01 16:02 UTCEG score recompute
  12. 2026-09-30 15:03 UTCEPSS rescore
  13. 2026-09-29 15:22 UTCEPSS rescore
  14. 2026-09-28 13:51 UTCEPSS rescore
  15. 2026-09-28 10:28 UTCEG score recompute
  16. 2026-09-27 13:48 UTCEPSS rescore
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-24 14:04 UTCEPSS rescore
  19. 2026-09-24 11:24 UTCEG score recompute
  20. 2026-09-23 17:54 UTCEPSS rescore
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  22. 2026-09-20 20:16 UTCEPSS rescore
  23. 2026-09-18 19:28 UTCEPSS rescore
  24. 2026-09-18 05:36 UTCEG score recompute
  25. 2026-09-17 19:31 UTCEPSS rescore
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  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-15 03:11 UTCEPSS rescore
  4. 2026-09-14 06:59 UTCEG score recompute
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-13 08:18 UTCEG score recompute
  7. 2026-09-12 03:23 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-10 09:35 UTCEPSS rescore
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-07 16:01 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-05 22:35 UTCEG score recompute
  14. 2026-09-04 05:07 UTCEPSS rescore
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  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 06:45 UTCEG score recompute
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-28 21:42 UTCEPSS rescore
  22. 2026-08-28 02:41 UTCEG score recompute
  23. 2026-08-27 14:25 UTCEPSS rescore
  24. 2026-08-27 02:29 UTCEG score recompute
  25. 2026-08-26 14:46 UTCEPSS rescore
  26. 2026-08-26 03:50 UTCEG score recompute
  27. 2026-08-25 13:49 UTCEPSS rescore
  28. 2026-08-24 21:44 UTCEG score recompute
  29. 2026-08-23 23:05 UTCEG score recompute
  30. 2026-08-23 00:19 UTCEPSS rescore
  31. 2026-08-22 01:25 UTCEG score recompute
  32. 2026-08-21 23:49 UTCEPSS rescore
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  34. 2026-08-20 22:55 UTCEPSS rescore
  35. 2026-08-20 04:07 UTCEG score recompute
  36. 2026-08-19 17:04 UTCEPSS rescore
  37. 2026-08-19 05:27 UTCEG score recompute
  38. 2026-08-18 13:48 UTCEPSS rescore
  39. 2026-08-18 06:17 UTCEG score recompute
  40. 2026-08-17 13:47 UTCEPSS rescore
  41. 2026-08-17 07:16 UTCEG score recompute
  42. 2026-08-16 14:56 UTCEPSS rescore
  43. 2026-08-16 08:38 UTCEG score recompute
  44. 2026-08-16 02:14 UTCEPSS rescore
  45. 2026-08-15 10:00 UTCEG score recompute
  46. 2026-08-15 01:30 UTCEPSS rescore
  47. 2026-08-14 11:21 UTCEG score recompute
  48. 2026-08-13 22:00 UTCEPSS rescore
  49. 2026-08-12 14:05 UTCEG score recompute
  50. 2026-08-12 13:51 UTCEPSS rescore
  51. 2026-08-11 15:26 UTCEG score recompute
  52. 2026-08-11 00:00 UTCEPSS rescore
  53. 2026-08-09 17:57 UTCEG score recompute
  54. 2026-08-09 13:46 UTCEPSS rescore
  55. 2026-08-08 19:19 UTCEG score recompute
  56. 2026-08-08 16:37 UTCEPSS rescore
  57. 2026-08-07 20:40 UTCEG score recompute
  58. 2026-08-06 22:01 UTCEG score recompute
  59. 2026-08-06 13:47 UTCEPSS rescore
  60. 2026-08-05 23:23 UTCEG score recompute
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 00:44 UTCEG score recompute
  63. 2026-08-04 15:10 UTCEPSS rescore
  64. 2026-08-04 10:39 UTCEPSS rescore
  65. 2026-08-04 01:39 UTCEG score recompute
  66. 2026-08-03 10:36 UTCEPSS rescore
  67. 2026-08-02 04:22 UTCEG score recompute
  68. 2026-08-02 02:27 UTCEPSS rescore
  69. 2026-08-01 05:43 UTCEG score recompute
  70. 2026-08-01 04:16 UTCEPSS rescore
  71. 2026-07-31 07:00 UTCEG score recompute
  72. 2026-07-30 16:28 UTCEPSS rescore
  73. 2026-07-30 08:21 UTCEG score recompute
  74. 2026-07-30 01:30 UTCEPSS rescore
  75. 2026-07-30 01:30 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-59223?
CVE-2026-59223 is a medium vulnerability published on July 9, 2026. Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, WEBFETCHFILTER_LIST matching compared configured host entries against URL strings and non-label-boundary suffixes, allowing path-based blocklist bypasses such as !internal.example.com in a URL…
When was CVE-2026-59223 disclosed?
CVE-2026-59223 was first published on July 9, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59223 actively exploited?
CVE-2026-59223 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59223?
CVE-2026-59223 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-59223?
A fix for CVE-2026-59223 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-59223 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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