CVE-2026-54018

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 69% 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
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: None knownExposed: 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 0.9.6, the SafePlaywrightURLLoader implements a validate_url function to prevent SSRF attacks by checking the IP address of the user-provided URL. However, this validation is performed only on the initial URL. Since Playwright automatically follows HTTP redirects (301/302) by default, an attacker can bypass the validation by providing a safe URL that redirects to a restricted internal network address (e.g., localhost, Docker container network, or Cloud Metadata). This allows the application to access internal services despite ENABLE_RAG_LOCAL_WEB_FETCH being set to False This vulnerability is fixed in 0.9.6.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity77% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 25, 2026

Advisory Details (1)

Auto-updated Jun 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

SSRF Protection Bypass in Playwright Web Loader via HTTP Redirects · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-jrfp-m64g-pcwv

Vendor Advisories for CVE-2026-54018(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 ... 0.9.5 (157 versions)0.9.6—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 48× 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. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 22:24 UTCEG score recompute
  3. 2026-08-23 04:15 UTCEG score recompute
  4. 2026-08-23 00:19 UTCEPSS rescore
  5. 2026-08-21 23:49 UTCEPSS rescore
  6. 2026-08-21 07:24 UTCEG score recompute
  7. 2026-08-20 22:55 UTCEPSS rescore
  8. 2026-08-20 08:13 UTCEG score recompute
  9. 2026-08-19 17:04 UTCEPSS rescore
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  11. 2026-08-18 13:48 UTCEPSS rescore
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  13. 2026-08-16 21:01 UTCEG score recompute
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  21. 2026-08-12 22:15 UTCEG score recompute
  22. 2026-08-12 13:51 UTCEPSS rescore
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  24. 2026-08-11 00:24 UTCEG score recompute
  25. 2026-08-11 00:00 UTCEPSS rescore
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  1. 2026-08-09 14:00 UTCEG score recompute
  2. 2026-08-09 13:46 UTCEPSS rescore
  3. 2026-08-09 02:33 UTCEG score recompute
  4. 2026-08-08 16:37 UTCEPSS rescore
  5. 2026-08-08 03:37 UTCEG score recompute
  6. 2026-08-06 17:13 UTCEG score recompute
  7. 2026-08-06 13:47 UTCEPSS rescore
  8. 2026-08-06 05:45 UTCEG score recompute
  9. 2026-08-05 19:17 UTCEPSS rescore
  10. 2026-08-04 15:26 UTCEG score recompute
  11. 2026-08-04 15:10 UTCEPSS rescore
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  14. 2026-08-02 02:27 UTCEPSS rescore
  15. 2026-08-01 09:09 UTCEG score recompute
  16. 2026-08-01 04:16 UTCEPSS rescore
  17. 2026-07-30 22:38 UTCEG score recompute
  18. 2026-07-30 16:28 UTCEPSS rescore
  19. 2026-07-30 03:35 UTCEG score recompute
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  21. 2026-07-29 02:07 UTCEG score recompute
  22. 2026-07-28 15:37 UTCEPSS rescore
  23. 2026-07-27 18:37 UTCEG score recompute
  24. 2026-07-26 19:06 UTCEG score recompute
  25. 2026-07-26 14:54 UTCEPSS rescore
  26. 2026-07-25 14:18 UTCEPSS rescore
  27. 2026-07-24 14:18 UTCEPSS rescore
  28. 2026-07-23 14:18 UTCEPSS rescore
  29. 2026-07-23 03:19 UTCEG score recompute
  30. 2026-07-22 14:08 UTCEPSS rescore
  31. 2026-07-21 15:25 UTCEPSS rescore
  32. 2026-07-20 17:08 UTCEPSS rescore
  33. 2026-07-19 14:31 UTCEPSS rescore
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  35. 2026-07-19 02:29 UTCEPSS rescore
  36. 2026-07-18 10:04 UTCEPSS rescore
  37. 2026-07-16 17:03 UTCEPSS rescore
  38. 2026-07-15 16:57 UTCEPSS rescore
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  40. 2026-07-15 02:00 UTCEPSS rescore
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  42. 2026-07-13 22:31 UTCEPSS rescore
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  45. 2026-07-12 05:46 UTCEPSS rescore
  46. 2026-07-11 08:27 UTCEPSS rescore
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  48. 2026-07-09 19:10 UTCEPSS rescore
  49. 2026-07-09 19:10 UTCEPSS rescore
  50. 2026-07-08 15:16 UTCEPSS rescore
  51. 2026-07-08 15:16 UTCEPSS rescore
  52. 2026-07-07 13:46 UTCEPSS rescore
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  54. 2026-07-06 16:27 UTCEPSS rescore
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  56. 2026-07-06 02:23 UTCEPSS rescore
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  62. 2026-07-01 15:07 UTCEPSS rescore
  63. 2026-06-30 23:22 UTCEPSS rescore
  64. 2026-06-29 14:06 UTCEPSS rescore
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  66. 2026-06-28 14:07 UTCEPSS rescore
  67. 2026-06-28 04:56 UTCEPSS rescore
  68. 2026-06-28 04:56 UTCEPSS rescore
  69. 2026-06-27 03:08 UTCEPSS rescore
  70. 2026-06-25 13:49 UTCEPSS rescore
  71. 2026-06-24 14:05 UTCEPSS rescore
  72. 2026-06-17 18:07 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54018?
CVE-2026-54018 is a high vulnerability published on June 17, 2026. Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the SafePlaywrightURLLoader implements a validateurl function to prevent SSRF attacks by checking the IP address of the user-provided URL. However, this validation is performed only on…
When was CVE-2026-54018 disclosed?
CVE-2026-54018 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54018 actively exploited?
CVE-2026-54018 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 68.6% of all scored CVEs.
What is the CVSS score of CVE-2026-54018?
CVE-2026-54018 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-54018?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54018, 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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