CVE-2026-9330

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-01. a secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.5Exploit: None knownExposed: 0

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

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity85% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM WebSphere Application Server is affected by remote code execution (CVE-2026-9311, CVE-2026-9330)

https://www.ibm.com/support/pages/node/7274733

Vendor Advisories for CVE-2026-9330(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 12× in last 7d / 50× 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. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-27 11:43 UTCGHSA enrichment
  3. 2026-07-26 23:40 UTCEG score recompute
  4. 2026-07-26 23:40 UTCGHSA enrichment
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:18 UTCEPSS rescore
  8. 2026-07-23 14:18 UTCEPSS rescore
  9. 2026-07-23 03:23 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-21 15:25 UTCEPSS rescore
  12. 2026-07-21 15:25 UTCEPSS rescore
  13. 2026-07-20 17:08 UTCEPSS rescore
  14. 2026-07-19 14:31 UTCEPSS rescore
  15. 2026-07-19 02:29 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 17:03 UTCEPSS rescore
  18. 2026-07-16 01:31 UTCGHSA enrichment
  19. 2026-07-15 16:57 UTCEPSS rescore
  20. 2026-07-15 02:00 UTCEPSS rescore
  21. 2026-07-14 18:28 UTCGHSA enrichment
  22. 2026-07-14 05:39 UTCGHSA enrichment
  23. 2026-07-13 22:31 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-12 05:46 UTCEPSS rescore
Show 75 more
  1. 2026-07-12 01:35 UTCGHSA enrichment
  2. 2026-07-11 13:29 UTCGHSA enrichment
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-09 19:10 UTCEPSS rescore
  5. 2026-07-08 16:57 UTCGHSA enrichment
  6. 2026-07-08 15:16 UTCEPSS rescore
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-05 02:31 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-02 14:11 UTCGHSA enrichment
  14. 2026-07-02 02:10 UTCGHSA enrichment
  15. 2026-07-01 15:07 UTCEPSS rescore
  16. 2026-07-01 11:34 UTCGHSA enrichment
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-30 23:22 UTCGHSA enrichment
  19. 2026-06-30 00:32 UTCGHSA enrichment
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-29 11:43 UTCGHSA enrichment
  22. 2026-06-28 16:18 UTCGHSA enrichment
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:14 UTCGHSA enrichment
  26. 2026-06-27 16:12 UTCGHSA enrichment
  27. 2026-06-27 03:59 UTCGHSA enrichment
  28. 2026-06-27 03:08 UTCEPSS rescore
  29. 2026-06-26 15:57 UTCGHSA enrichment
  30. 2026-06-26 03:06 UTCGHSA enrichment
  31. 2026-06-25 15:03 UTCGHSA enrichment
  32. 2026-06-25 13:50 UTCEPSS rescore
  33. 2026-06-25 03:00 UTCGHSA enrichment
  34. 2026-06-24 14:58 UTCGHSA enrichment
  35. 2026-06-24 14:05 UTCEPSS rescore
  36. 2026-06-24 01:53 UTCGHSA enrichment
  37. 2026-06-23 21:33 UTCEPSS rescore
  38. 2026-06-22 14:25 UTCEPSS rescore
  39. 2026-06-21 14:56 UTCEPSS rescore
  40. 2026-06-21 01:59 UTCEPSS rescore
  41. 2026-06-20 14:10 UTCGHSA enrichment
  42. 2026-06-19 19:26 UTCEPSS rescore
  43. 2026-06-18 22:01 UTCGHSA enrichment
  44. 2026-06-18 17:52 UTCEPSS rescore
  45. 2026-06-17 23:50 UTCGHSA enrichment
  46. 2026-06-17 17:53 UTCEPSS rescore
  47. 2026-06-17 11:48 UTCGHSA enrichment
  48. 2026-06-16 23:45 UTCGHSA enrichment
  49. 2026-06-16 17:53 UTCEPSS rescore
  50. 2026-06-16 11:43 UTCGHSA enrichment
  51. 2026-06-15 23:38 UTCGHSA enrichment
  52. 2026-06-15 17:49 UTCEPSS rescore
  53. 2026-06-15 17:49 UTCEPSS rescore
  54. 2026-06-15 11:36 UTCGHSA enrichment
  55. 2026-06-14 23:18 UTCEPSS rescore
  56. 2026-06-14 22:09 UTCGHSA enrichment
  57. 2026-06-14 10:06 UTCGHSA enrichment
  58. 2026-06-13 23:00 UTCEPSS rescore
  59. 2026-06-13 22:03 UTCGHSA enrichment
  60. 2026-06-13 10:01 UTCGHSA enrichment
  61. 2026-06-12 23:12 UTCEPSS rescore
  62. 2026-06-12 23:12 UTCEPSS rescore
  63. 2026-06-12 21:54 UTCGHSA enrichment
  64. 2026-06-12 09:52 UTCGHSA enrichment
  65. 2026-06-11 21:50 UTCGHSA enrichment
  66. 2026-06-11 14:00 UTCEPSS rescore
  67. 2026-06-11 09:48 UTCGHSA enrichment
  68. 2026-06-10 22:19 UTCEPSS rescore
  69. 2026-06-10 21:46 UTCGHSA enrichment
  70. 2026-06-10 13:22 UTCEPSS rescore
  71. 2026-06-10 09:44 UTCGHSA enrichment
  72. 2026-06-09 21:42 UTCGHSA enrichment
  73. 2026-06-09 09:39 UTCGHSA enrichment
  74. 2026-06-08 21:37 UTCGHSA enrichment
  75. 2026-06-08 14:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9330?
CVE-2026-9330 is a high vulnerability published on June 1, 2026. IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.
When was CVE-2026-9330 disclosed?
CVE-2026-9330 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9330 actively exploited?
CVE-2026-9330 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 59.2% of all scored CVEs.
What is the CVSS score of CVE-2026-9330?
CVE-2026-9330 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-9330?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9330, 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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