CVE-2026-23904

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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 mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.9%
EPSS %ILE
56th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 29, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Jul 29, 2026
Fix referenced — no release 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 14× in last 7d / 74× 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 238 total refreshes for this CVE.

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

Related CVEs(same CWE)

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 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 0.9% probability of exploitation in the next 30 days (56th percentile of EPSS-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?
A fix for CVE-2026-23904 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-23904 are linked in the Vendor Advisories panel on this page.

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