CVE-2026-9806

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 83% 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
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

A stored cross-site scripting (XSS) vulnerability exists in the notification panel of CTI Transmute in versions prior to the patched release. Notification messages containing user-controlled convert names were rendered in the notification bell dropdown using innerHTML without adequate sanitization. An attacker able to create or influence a convert name that is included in a notification could inject arbitrary JavaScript, which would execute in the browser of an authenticated user when they opened the notification panel. Successful exploitation could allow the attacker to perform actions in the victim's session or access information available to the application in the browser context. The issue was remediated by constructing notification elements through DOM methods and assigning notification message content via textContent instead of innerHTML. This vulnerability was only present on a development branch.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

May 28, 2026

Last Modified

May 29, 2026

Advisory Details (1)

Auto-updated Jun 13, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit cf42409badc2 (MISP/cti-transmute)

Patch available: MISP/cti-transmute v1.3 (contains commit cf42409badc2)

https://github.com/MISP/cti-transmute/commit/cf42409badc27b13d9bb644b9175aa7f27e11259

Vendor Advisories for CVE-2026-9806(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 5× in last 7d / 55× 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 168 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-9806?
CVE-2026-9806 is a medium vulnerability published on May 28, 2026. A stored cross-site scripting (XSS) vulnerability exists in the notification panel of CTI Transmute in versions prior to the patched release. Notification messages containing user-controlled convert names were rendered in the notification bell dropdown using innerHTML without adequate sanitization.…
When was CVE-2026-9806 disclosed?
CVE-2026-9806 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9806 actively exploited?
CVE-2026-9806 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 82.8% of all scored CVEs.
What is the CVSS score of CVE-2026-9806?
CVE-2026-9806 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-9806?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9806, 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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