CVE-2026-27304

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-15. NVD baseline CVSS 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 9.3Exploit: None knownExposed: 0

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

ColdFusion versions 2023.18, 2025.6 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity93% × 45%
Exploitation4% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

April 14, 2026

Last Modified

August 28, 2026

References (1)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 30× 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 248 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-27304?
CVE-2026-27304 is a critical vulnerability published on April 14, 2026. ColdFusion versions 2023.18, 2025.6 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.
When was CVE-2026-27304 disclosed?
CVE-2026-27304 was first published in the National Vulnerability Database on April 14, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27304 actively exploited?
CVE-2026-27304 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.1% of all scored CVEs.
What is the CVSS score of CVE-2026-27304?
CVE-2026-27304 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-27304?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27304, 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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