CVE-2026-59216

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 77% 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
Elevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, get_event_call delivered execute:python and execute:tool Socket.IO events to a client-supplied session_id after checking only that the session was connected, allowing authenticated users who learned another socket ID through ydoc:document:join to run code interpreter Python or tools in that user session. This issue is fixed in version 0.10.0.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 13, 2026

Advisory Details (4)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-74h3-cxq7-vc5q
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

fix: scope Socket.IO event-caller to the requesting user's own session

Fix merged in open-webui/open-webui PR #25763 on 2026-06-29 — awaiting tagged release

https://github.com/open-webui/open-webui/pull/25763
github_commit

commit 386ac958144d (open-webui/open-webui)

Fix landed in open-webui/open-webui commit 386ac958144d — awaiting tagged release

https://github.com/open-webui/open-webui/commit/386ac958144dbbbf0aa6e268070d72b681a318aa

Vendor Advisories for CVE-2026-59216(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 ... 0.9.6 (158 versions)0.10.0—

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 56× 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. 2026-08-27 21:45 UTCEG score recompute
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-27 01:01 UTCEG score recompute
  4. 2026-08-26 14:46 UTCEPSS rescore
  5. 2026-08-25 14:47 UTCEG score recompute
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-24 20:20 UTCEG score recompute
  8. 2026-08-24 09:36 UTCEG score recompute
  9. 2026-08-23 02:21 UTCEG score recompute
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 03:36 UTCEG score recompute
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 00:08 UTCEG score recompute
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-20 01:48 UTCEG score recompute
  16. 2026-08-19 17:04 UTCEPSS rescore
  17. 2026-08-18 20:42 UTCEG score recompute
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 22:16 UTCEG score recompute
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-16 15:32 UTCEG score recompute
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 02:24 UTCEG score recompute
  24. 2026-08-16 02:14 UTCEPSS rescore
  25. 2026-08-15 04:29 UTCEG score recompute
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  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 02:10 UTCEG score recompute
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-12 15:04 UTCEG score recompute
  5. 2026-08-12 13:51 UTCEPSS rescore
  6. 2026-08-11 17:07 UTCEG score recompute
  7. 2026-08-11 03:51 UTCEG score recompute
  8. 2026-08-11 00:00 UTCEPSS rescore
  9. 2026-08-09 16:46 UTCEG score recompute
  10. 2026-08-09 13:46 UTCEPSS rescore
  11. 2026-08-07 16:33 UTCEG score recompute
  12. 2026-08-06 18:08 UTCEG score recompute
  13. 2026-08-06 13:47 UTCEPSS rescore
  14. 2026-08-05 20:11 UTCEG score recompute
  15. 2026-08-05 19:17 UTCEPSS rescore
  16. 2026-08-04 18:14 UTCEG score recompute
  17. 2026-08-04 15:10 UTCEPSS rescore
  18. 2026-08-04 13:37 UTCEG score recompute
  19. 2026-08-04 10:39 UTCEPSS rescore
  20. 2026-08-03 12:55 UTCEG score recompute
  21. 2026-08-03 10:36 UTCEPSS rescore
  22. 2026-08-02 02:50 UTCEG score recompute
  23. 2026-08-02 02:27 UTCEPSS rescore
  24. 2026-08-01 04:53 UTCEG score recompute
  25. 2026-08-01 04:16 UTCEPSS rescore
  26. 2026-07-30 21:51 UTCEG score recompute
  27. 2026-07-30 16:28 UTCEPSS rescore
  28. 2026-07-30 10:42 UTCEG score recompute
  29. 2026-07-30 01:44 UTCEG score recompute
  30. 2026-07-30 01:30 UTCEPSS rescore
  31. 2026-07-30 01:30 UTCEPSS rescore
  32. 2026-07-28 18:09 UTCEG score recompute
  33. 2026-07-28 15:37 UTCEPSS rescore
  34. 2026-07-27 15:35 UTCEG score recompute
  35. 2026-07-27 14:14 UTCEPSS rescore
  36. 2026-07-26 16:43 UTCEG score recompute
  37. 2026-07-26 14:54 UTCEPSS rescore
  38. 2026-07-26 14:54 UTCEPSS rescore
  39. 2026-07-26 12:18 UTCEG score recompute
  40. 2026-07-25 14:18 UTCEPSS rescore
  41. 2026-07-25 14:18 UTCEPSS rescore
  42. 2026-07-24 14:18 UTCEPSS rescore
  43. 2026-07-24 14:18 UTCEPSS rescore
  44. 2026-07-23 14:18 UTCEPSS rescore
  45. 2026-07-23 14:18 UTCEPSS rescore
  46. 2026-07-23 03:21 UTCEG score recompute
  47. 2026-07-22 14:08 UTCEPSS rescore
  48. 2026-07-22 14:08 UTCEPSS rescore
  49. 2026-07-21 15:25 UTCEPSS rescore
  50. 2026-07-21 15:25 UTCEPSS rescore
  51. 2026-07-20 17:08 UTCEPSS rescore
  52. 2026-07-19 14:31 UTCEPSS rescore
  53. 2026-07-19 02:29 UTCEPSS rescore
  54. 2026-07-18 10:04 UTCEPSS rescore
  55. 2026-07-16 17:03 UTCEPSS rescore
  56. 2026-07-15 16:57 UTCEPSS rescore
  57. 2026-07-15 16:57 UTCEPSS rescore
  58. 2026-07-15 02:00 UTCEPSS rescore
  59. 2026-07-15 02:00 UTCEPSS rescore
  60. 2026-07-13 22:31 UTCEPSS rescore
  61. 2026-07-13 19:06 UTCEG score recompute▲ 1.30
  62. 2026-07-13 14:08 UTCNVD updateCVSS v3 → 9 · severity → CRITICAL
  63. 2026-07-13 06:13 UTCEPSS rescore
  64. 2026-07-13 06:13 UTCEPSS rescore
  65. 2026-07-12 05:46 UTCEPSS rescore
  66. 2026-07-11 08:27 UTCEPSS rescore
  67. 2026-07-11 08:27 UTCEPSS rescore
  68. 2026-07-09 17:18 UTCEG score recompute
  69. 2026-07-09 17:15 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59216?
CVE-2026-59216 is a critical 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, geteventcall delivered execute:python and execute:tool Socket.IO events to a client-supplied session_id after checking only that the session was connected, allowing authenticated users who learned…
When was CVE-2026-59216 disclosed?
CVE-2026-59216 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59216 actively exploited?
CVE-2026-59216 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-59216?
CVE-2026-59216 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-59216?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59216, 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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