CVE-2026-11906

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-30. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
34
EG Risk 34/100

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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
No fix on record yet.
generic

Security Bulletin: IBM® Db2® federated server is vulnerable to a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns by autheticated user (CVE-2026-11906)

https://www.ibm.com/support/pages/node/7277423

Vendor Advisories for CVE-2026-11906(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 7× in last 7d / 28× 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 167 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11906?
CVE-2026-11906 is a medium vulnerability published on June 30, 2026. IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.
When was CVE-2026-11906 disclosed?
CVE-2026-11906 was first published on June 30, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11906 actively exploited?
CVE-2026-11906 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-11906?
CVE-2026-11906 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-11906?
No fix for CVE-2026-11906 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-11906 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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