CVE-2026-28415

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 86% 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
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

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

Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.6.0, the _redirect_to_target() function in Gradio's OAuth flow accepts an unvalidated _target_url query parameter, allowing redirection to arbitrary external URLs. This affects the /logout and /login/callback endpoints on Gradio apps with OAuth enabled (i.e. apps running on Hugging Face Spaces with gr.LoginButton). Starting in version 6.6.0, the _target_url parameter is sanitized to only use the path, query, and fragment, stripping any scheme or host.

CVSS v3
4.7
EG Score
4.7(medium)
EG Risk
21(Track)
EG Risk 21/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

March 1, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
Patch available. Sources: github.
github Patch Available

Open Redirect in OAuth Flow · Advisory · gradio-app/gradio · GitHub

https://github.com/gradio-app/gradio/security/advisories/GHSA-pfjf-5gxr-995x

Vendor Advisories for CVE-2026-28415(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
gradio0.1.0 ... 6.5.1 (652 versions)6.6.0—

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 36× 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 120 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 14:17 UTCEPSS rescore
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-20 22:55 UTCEPSS rescore
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  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 08:47 UTCEG score recompute
  14. 2026-08-13 22:00 UTCEPSS rescore
  15. 2026-08-13 01:43 UTCEG score recompute
  16. 2026-08-12 13:50 UTCEPSS rescore
  17. 2026-08-11 23:31 UTCEG score recompute
  18. 2026-08-11 13:42 UTCEPSS rescore
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-10 13:10 UTCEG score recompute
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-09 08:25 UTCEG score recompute
  23. 2026-08-08 16:37 UTCEPSS rescore
  24. 2026-08-07 20:24 UTCEG score recompute
  25. 2026-08-06 13:46 UTCEPSS rescore
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  1. 2026-08-06 02:52 UTCEG score recompute
  2. 2026-08-05 19:17 UTCEPSS rescore
  3. 2026-08-04 15:10 UTCEPSS rescore
  4. 2026-08-04 04:42 UTCEG score recompute
  5. 2026-08-03 10:36 UTCEPSS rescore
  6. 2026-08-02 19:17 UTCEG score recompute▲ 0.40
  7. 2026-08-02 02:26 UTCEPSS rescore
  8. 2026-08-01 04:16 UTCEPSS rescore
  9. 2026-07-30 16:27 UTCEPSS rescore
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  11. 2026-07-28 15:36 UTCEPSS rescore
  12. 2026-07-26 14:54 UTCEPSS rescore
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  14. 2026-07-25 14:18 UTCEPSS rescore
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  17. 2026-07-23 14:18 UTCEPSS rescore
  18. 2026-07-23 14:18 UTCEPSS rescore
  19. 2026-07-23 03:08 UTCEG score recompute
  20. 2026-07-22 14:08 UTCEPSS rescore
  21. 2026-07-22 14:08 UTCEPSS rescore
  22. 2026-07-21 15:24 UTCEPSS rescore
  23. 2026-07-21 15:24 UTCEPSS rescore
  24. 2026-07-20 17:08 UTCEPSS rescore
  25. 2026-07-20 17:08 UTCEPSS rescore
  26. 2026-07-19 14:31 UTCEPSS rescore
  27. 2026-07-19 14:31 UTCEPSS rescore
  28. 2026-07-19 02:29 UTCEPSS rescore
  29. 2026-07-18 10:04 UTCEPSS rescore
  30. 2026-07-18 10:04 UTCEPSS rescore
  31. 2026-07-17 10:59 UTCOSV refresh
  32. 2026-07-16 17:03 UTCEPSS rescore
  33. 2026-07-16 17:03 UTCEPSS rescore
  34. 2026-07-15 16:57 UTCEPSS rescore
  35. 2026-07-15 16:57 UTCEPSS rescore
  36. 2026-07-15 02:00 UTCEPSS rescore
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  38. 2026-07-13 22:30 UTCEPSS rescore
  39. 2026-07-13 06:13 UTCEPSS rescore
  40. 2026-07-13 06:13 UTCEPSS rescore
  41. 2026-07-12 05:46 UTCEPSS rescore
  42. 2026-07-11 08:27 UTCEPSS rescore
  43. 2026-07-09 19:10 UTCEPSS rescore
  44. 2026-07-08 15:15 UTCEPSS rescore
  45. 2026-07-07 13:46 UTCEPSS rescore
  46. 2026-07-06 16:27 UTCEPSS rescore
  47. 2026-07-06 16:27 UTCEPSS rescore
  48. 2026-07-06 02:23 UTCEPSS rescore
  49. 2026-07-06 02:23 UTCEPSS rescore
  50. 2026-07-05 02:30 UTCEPSS rescore
  51. 2026-07-04 06:31 UTCEPSS rescore
  52. 2026-07-01 15:06 UTCEPSS rescore
  53. 2026-06-29 14:06 UTCEPSS rescore
  54. 2026-06-29 09:32 UTCOSV refresh
  55. 2026-06-28 14:07 UTCEPSS rescore
  56. 2026-06-28 14:07 UTCEPSS rescore
  57. 2026-06-28 04:56 UTCEPSS rescore
  58. 2026-06-28 04:56 UTCEPSS rescore
  59. 2026-06-27 03:08 UTCEPSS rescore
  60. 2026-06-25 13:49 UTCEPSS rescore
  61. 2026-06-25 13:49 UTCEPSS rescore
  62. 2026-06-24 14:05 UTCEPSS rescore
  63. 2026-06-24 14:05 UTCEPSS rescore
  64. 2026-06-23 21:33 UTCEPSS rescore
  65. 2026-06-23 21:32 UTCEPSS rescore
  66. 2026-06-22 14:25 UTCEPSS rescore
  67. 2026-06-22 14:25 UTCEPSS rescore
  68. 2026-06-21 14:56 UTCEPSS rescore
  69. 2026-06-21 14:56 UTCEPSS rescore
  70. 2026-06-21 01:59 UTCEPSS rescore
  71. 2026-06-21 01:59 UTCEPSS rescore
  72. 2026-06-19 19:25 UTCEPSS rescore
  73. 2026-06-19 19:25 UTCEPSS rescore
  74. 2026-06-18 17:52 UTCEPSS rescore
  75. 2026-06-17 17:53 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-28415?
CVE-2026-28415 is a medium vulnerability published on March 1, 2026. Gradio is an open-source Python package designed for quick prototyping. Prior to version 6.6.0, the redirecttotarget() function in Gradio's OAuth flow accepts an unvalidated targeturl query parameter, allowing redirection to arbitrary external URLs. This affects the /logout and /login/callback…
When was CVE-2026-28415 disclosed?
CVE-2026-28415 was first published in the National Vulnerability Database on March 1, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28415 actively exploited?
CVE-2026-28415 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 86.2% of all scored CVEs.
What is the CVSS score of CVE-2026-28415?
CVE-2026-28415 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2026-28415?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28415, 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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