CVE-2026-59214

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 80% 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
Trending — 4 sources updated this week
9.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.0Exploit: NoneExposed: 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, Open WebUI runs client-side Python with Pyodide in a same-origin web worker, allowing stored chat payloads that use pyodide.http.pyfetch or the js module fetch and XMLHttpRequest APIs to issue authenticated same-origin requests when a victim clicks Run, which can reach admin-only endpoints and execute server-side code through configured tools. This issue is fixed in version 0.10.0.

CVSS v3
9.0
EG Score
9.0(medium)
EPSS
20.5%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
Patch available. Sources: github.
github Patch Available

Same-origin Pyodide code execution allows server-side RCE via a shared chat · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-4r2p-27mh-5m22

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 45× in last 7d / 45× 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. 2026-07-16 02:42 UTCEG score recompute
  2. 2026-07-15 22:38 UTCEG score recompute
  3. 2026-07-15 18:34 UTCEG score recompute
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 16:57 UTCEPSS rescore
  6. 2026-07-15 14:29 UTCEG score recompute
  7. 2026-07-15 10:24 UTCEG score recompute
  8. 2026-07-15 06:19 UTCEG score recompute
  9. 2026-07-15 02:15 UTCEG score recompute
  10. 2026-07-15 02:00 UTCEPSS rescore
  11. 2026-07-15 02:00 UTCEPSS rescore
  12. 2026-07-14 22:11 UTCEG score recompute
  13. 2026-07-14 18:05 UTCEG score recompute
  14. 2026-07-14 14:01 UTCEG score recompute
  15. 2026-07-14 09:57 UTCEG score recompute
  16. 2026-07-14 05:53 UTCEG score recompute
  17. 2026-07-14 01:49 UTCEG score recompute
  18. 2026-07-13 22:31 UTCEPSS rescore
  19. 2026-07-13 21:45 UTCEG score recompute
  20. 2026-07-13 17:40 UTCEG score recompute
  21. 2026-07-13 13:36 UTCEG score recompute
  22. 2026-07-13 09:32 UTCEG score recompute
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-13 05:28 UTCEG score recompute
Show 20 more
  1. 2026-07-13 01:24 UTCEG score recompute
  2. 2026-07-12 21:20 UTCEG score recompute
  3. 2026-07-12 17:15 UTCEG score recompute
  4. 2026-07-12 13:12 UTCEG score recompute
  5. 2026-07-12 09:07 UTCEG score recompute
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-12 05:03 UTCEG score recompute
  8. 2026-07-12 00:59 UTCEG score recompute
  9. 2026-07-11 20:55 UTCEG score recompute
  10. 2026-07-11 16:51 UTCEG score recompute
  11. 2026-07-11 12:47 UTCEG score recompute
  12. 2026-07-11 08:43 UTCEG score recompute
  13. 2026-07-11 08:27 UTCEPSS rescore
  14. 2026-07-11 08:27 UTCEPSS rescore
  15. 2026-07-11 04:39 UTCEG score recompute▲ 1.70
  16. 2026-07-10 20:19 UTCNVD updateCVSS v3 → 9 · severity → CRITICAL
  17. 2026-07-10 16:35 UTCEG score recompute
  18. 2026-07-10 04:32 UTCEG score recompute
  19. 2026-07-09 16:29 UTCEG score recompute
  20. 2026-07-09 16:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59214?
CVE-2026-59214 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, Open WebUI runs client-side Python with Pyodide in a same-origin web worker, allowing stored chat payloads that use pyodide.http.pyfetch or the js module fetch and XMLHttpRequest APIs to issue…
When was CVE-2026-59214 disclosed?
CVE-2026-59214 was first published in the National Vulnerability Database 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-2026-59214 actively exploited?
CVE-2026-59214 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59214?
CVE-2026-59214 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-59214?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59214, 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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