CVE-2026-23904

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.3Exploit: None knownExposed: 0

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

Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.

This issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.

Users are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

July 29, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Jul 29, 2026
No patch confirmed yet. Sources: github_pr.
generic
https://lists.apache.org/thread/ps79fcfx49ox9kwgztc5t5bw0tyhck9m
github_pr

Restrict Engine UI proxy targets

Upstream fix in progress (PR #7483 · apache/kyuubi, state=closed)

https://github.com/apache/kyuubi/pull/7483

Vendor Advisories for CVE-2026-23904(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 120× 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 16:39 UTCEG score recompute
  2. 2026-08-25 16:39 UTCGHSA enrichment
  3. 2026-08-25 13:48 UTCEPSS rescore
  4. 2026-08-25 05:42 UTCGHSA enrichment
  5. 2026-08-24 18:52 UTCEG score recompute
  6. 2026-08-24 18:52 UTCGHSA enrichment
  7. 2026-08-24 08:03 UTCGHSA enrichment
  8. 2026-08-23 21:13 UTCGHSA enrichment
  9. 2026-08-23 10:24 UTCEG score recompute
  10. 2026-08-23 10:24 UTCGHSA enrichment
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 23:31 UTCGHSA enrichment
  13. 2026-08-22 12:41 UTCGHSA enrichment
  14. 2026-08-22 01:52 UTCEG score recompute
  15. 2026-08-22 01:51 UTCGHSA enrichment
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 15:02 UTCGHSA enrichment
  18. 2026-08-21 04:12 UTCEG score recompute
  19. 2026-08-21 04:12 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 17:23 UTCGHSA enrichment
  22. 2026-08-20 06:29 UTCGHSA enrichment
  23. 2026-08-19 19:39 UTCEG score recompute
  24. 2026-08-19 19:39 UTCGHSA enrichment
  25. 2026-08-19 17:03 UTCEPSS rescore
Show 75 more
  1. 2026-08-19 08:34 UTCGHSA enrichment
  2. 2026-08-18 21:45 UTCEG score recompute
  3. 2026-08-18 21:45 UTCGHSA enrichment
  4. 2026-08-18 13:48 UTCEPSS rescore
  5. 2026-08-18 10:47 UTCGHSA enrichment
  6. 2026-08-17 23:57 UTCEG score recompute
  7. 2026-08-17 23:57 UTCGHSA enrichment
  8. 2026-08-17 13:47 UTCEPSS rescore
  9. 2026-08-17 13:07 UTCGHSA enrichment
  10. 2026-08-17 02:18 UTCGHSA enrichment
  11. 2026-08-16 15:28 UTCEG score recompute
  12. 2026-08-16 15:28 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 04:39 UTCEG score recompute
  15. 2026-08-16 04:39 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 17:50 UTCGHSA enrichment
  18. 2026-08-15 07:00 UTCEG score recompute
  19. 2026-08-15 07:00 UTCGHSA enrichment
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 19:26 UTCGHSA enrichment
  22. 2026-08-14 08:37 UTCEG score recompute
  23. 2026-08-14 08:37 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 21:47 UTCGHSA enrichment
  26. 2026-08-13 10:57 UTCGHSA enrichment
  27. 2026-08-13 00:07 UTCEG score recompute
  28. 2026-08-13 00:07 UTCGHSA enrichment
  29. 2026-08-12 13:50 UTCEPSS rescore
  30. 2026-08-12 13:18 UTCGHSA enrichment
  31. 2026-08-12 02:28 UTCGHSA enrichment
  32. 2026-08-11 15:39 UTCEG score recompute
  33. 2026-08-11 15:39 UTCGHSA enrichment
  34. 2026-08-11 13:42 UTCEPSS rescore
  35. 2026-08-11 04:49 UTCEG score recompute
  36. 2026-08-11 04:49 UTCGHSA enrichment
  37. 2026-08-11 00:00 UTCEPSS rescore
  38. 2026-08-10 18:00 UTCGHSA enrichment
  39. 2026-08-10 07:05 UTCGHSA enrichment
  40. 2026-08-09 20:15 UTCEG score recompute
  41. 2026-08-09 20:15 UTCGHSA enrichment
  42. 2026-08-09 13:46 UTCEPSS rescore
  43. 2026-08-09 09:26 UTCGHSA enrichment
  44. 2026-08-08 22:37 UTCEG score recompute
  45. 2026-08-08 22:37 UTCGHSA enrichment
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-08 11:47 UTCGHSA enrichment
  48. 2026-08-08 00:58 UTCEG score recompute
  49. 2026-08-08 00:58 UTCGHSA enrichment
  50. 2026-08-07 14:09 UTCGHSA enrichment
  51. 2026-08-07 03:19 UTCGHSA enrichment
  52. 2026-08-06 16:29 UTCEG score recompute
  53. 2026-08-06 16:29 UTCGHSA enrichment
  54. 2026-08-06 13:46 UTCEPSS rescore
  55. 2026-08-06 05:39 UTCEG score recompute
  56. 2026-08-06 05:39 UTCGHSA enrichment
  57. 2026-08-05 19:17 UTCEPSS rescore
  58. 2026-08-05 18:50 UTCGHSA enrichment
  59. 2026-08-05 12:26 UTCGHSA enrichment
  60. 2026-08-05 01:10 UTCEG score recompute
  61. 2026-08-05 01:10 UTCGHSA enrichment
  62. 2026-08-04 15:10 UTCEPSS rescore
  63. 2026-08-04 14:18 UTCEG score recompute
  64. 2026-08-04 14:18 UTCGHSA enrichment
  65. 2026-08-04 10:38 UTCEPSS rescore
  66. 2026-08-04 03:28 UTCGHSA enrichment
  67. 2026-08-03 16:39 UTCEG score recompute
  68. 2026-08-03 16:39 UTCGHSA enrichment
  69. 2026-08-03 10:35 UTCEPSS rescore
  70. 2026-08-03 05:50 UTCGHSA enrichment
  71. 2026-08-02 19:00 UTCGHSA enrichment
  72. 2026-08-02 08:11 UTCEG score recompute
  73. 2026-08-02 08:11 UTCGHSA enrichment
  74. 2026-08-02 02:26 UTCEPSS rescore
  75. 2026-08-01 21:21 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-23904?
CVE-2026-23904 is a high vulnerability published on July 29, 2026. Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior. This…
When was CVE-2026-23904 disclosed?
CVE-2026-23904 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23904 actively exploited?
CVE-2026-23904 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.9% of all scored CVEs.
What is the CVSS score of CVE-2026-23904?
CVE-2026-23904 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-23904?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23904, 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.

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