CVE-2026-66724

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (35th percentile of EPSS-scored CVEs). 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, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user without the adding_configs or adding_blobs capabilities to upload config and text blob objects to the system. The impact is limited to adding new config and blob objects. This issue has been fixed in version 2.19.0

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

July 30, 2026

Advisory Details (3)

Auto-updated Jul 29, 2026
Patch available. Sources: github, github_release.
github_release Patch Available

v2.19.0

Patch available: CERT-Polska/mwdb-core v2.19.0

https://github.com/CERT-Polska/mwdb-core/releases/tag/v2.19.0
github Patch Available

Undocumented HTTP method on deprecated config/blob upload endpoints allow bypassing permissions · Advisory · CERT-Polska/mwdb-core · GitHub

Affected: 2.19.0.

https://github.com/CERT-Polska/mwdb-core/security/advisories/GHSA-8fv8-wffg-4323
generic Patch Available

Vulnerabilities in MWDB Core software | CERT Polska

https://cert.pl/en/posts/2026/07/CVE-2026-66723

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 37× 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.

  1. 2026-09-29 07:36 UTCEG score recompute
  2. 2026-09-28 13:52 UTCEPSS rescore
  3. 2026-09-28 03:16 UTCEG score recompute
  4. 2026-09-27 13:48 UTCEPSS rescore
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-25 05:40 UTCEG score recompute
  7. 2026-09-23 21:49 UTCEG score recompute
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-22 15:49 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-20 05:41 UTCEG score recompute
  12. 2026-09-19 04:54 UTCEG score recompute
  13. 2026-09-18 19:28 UTCEPSS rescore
  14. 2026-09-18 01:41 UTCEG score recompute
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 11:49 UTCEG score recompute
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 08:05 UTCEG score recompute
  19. 2026-09-12 15:53 UTCEG score recompute
  20. 2026-09-11 15:06 UTCEG score recompute
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 09:37 UTCEPSS rescore
  23. 2026-09-10 10:11 UTCEG score recompute
  24. 2026-09-09 07:48 UTCEG score recompute
  25. 2026-09-08 22:01 UTCEPSS rescore
Show 70 more
  1. 2026-09-07 23:27 UTCEG score recompute
  2. 2026-09-07 16:01 UTCEPSS rescore
  3. 2026-09-06 22:41 UTCEG score recompute
  4. 2026-09-06 13:47 UTCEPSS rescore
  5. 2026-09-05 19:06 UTCEG score recompute
  6. 2026-09-05 15:31 UTCEPSS rescore
  7. 2026-09-04 11:55 UTCEG score recompute
  8. 2026-09-04 05:07 UTCEPSS rescore
  9. 2026-09-02 14:12 UTCEPSS rescore
  10. 2026-09-01 13:54 UTCEPSS rescore
  11. 2026-09-01 04:40 UTCEPSS rescore
  12. 2026-08-31 00:06 UTCEG score recompute
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-29 23:19 UTCEG score recompute
  16. 2026-08-28 21:42 UTCEPSS rescore
  17. 2026-08-27 14:44 UTCEG score recompute
  18. 2026-08-26 14:47 UTCEPSS rescore
  19. 2026-08-26 13:42 UTCEG score recompute
  20. 2026-08-25 13:49 UTCEPSS rescore
  21. 2026-08-25 12:56 UTCEG score recompute
  22. 2026-08-24 12:04 UTCEG score recompute
  23. 2026-08-23 11:12 UTCEG score recompute
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-22 10:26 UTCEG score recompute
  26. 2026-08-21 23:49 UTCEPSS rescore
  27. 2026-08-21 09:40 UTCEG score recompute
  28. 2026-08-20 22:56 UTCEPSS rescore
  29. 2026-08-20 08:53 UTCEG score recompute
  30. 2026-08-19 17:04 UTCEPSS rescore
  31. 2026-08-19 08:07 UTCEG score recompute
  32. 2026-08-18 13:48 UTCEPSS rescore
  33. 2026-08-18 07:20 UTCEG score recompute
  34. 2026-08-17 13:47 UTCEPSS rescore
  35. 2026-08-17 06:34 UTCEG score recompute
  36. 2026-08-16 14:56 UTCEPSS rescore
  37. 2026-08-16 05:44 UTCEG score recompute
  38. 2026-08-15 04:59 UTCEG score recompute
  39. 2026-08-15 01:30 UTCEPSS rescore
  40. 2026-08-14 04:12 UTCEG score recompute
  41. 2026-08-13 22:00 UTCEPSS rescore
  42. 2026-08-13 03:26 UTCEG score recompute
  43. 2026-08-12 13:51 UTCEPSS rescore
  44. 2026-08-12 02:40 UTCEG score recompute
  45. 2026-08-11 01:54 UTCEG score recompute
  46. 2026-08-11 00:00 UTCEPSS rescore
  47. 2026-08-10 01:08 UTCEG score recompute
  48. 2026-08-09 13:47 UTCEPSS rescore
  49. 2026-08-09 00:22 UTCEG score recompute
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-07 23:35 UTCEG score recompute
  52. 2026-08-06 22:49 UTCEG score recompute
  53. 2026-08-06 13:47 UTCEPSS rescore
  54. 2026-08-05 21:34 UTCEG score recompute
  55. 2026-08-05 19:17 UTCEPSS rescore
  56. 2026-08-05 19:17 UTCEPSS rescore
  57. 2026-08-04 20:48 UTCEG score recompute
  58. 2026-08-04 15:10 UTCEPSS rescore
  59. 2026-08-04 10:39 UTCEPSS rescore
  60. 2026-08-03 19:53 UTCEG score recompute
  61. 2026-08-03 10:36 UTCEPSS rescore
  62. 2026-08-02 19:07 UTCEG score recompute
  63. 2026-08-02 02:27 UTCEPSS rescore
  64. 2026-08-01 18:21 UTCEG score recompute
  65. 2026-08-01 04:16 UTCEPSS rescore
  66. 2026-07-30 16:45 UTCEG score recompute
  67. 2026-07-30 16:28 UTCEPSS rescore
  68. 2026-07-29 15:21 UTCEG score recompute
  69. 2026-07-29 14:48 UTCEG score recompute
  70. 2026-07-29 14:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66724?
CVE-2026-66724 is a medium vulnerability published on July 29, 2026. MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user…
When was CVE-2026-66724 disclosed?
CVE-2026-66724 was first published on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66724 actively exploited?
CVE-2026-66724 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66724?
CVE-2026-66724 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-66724?
A fix for CVE-2026-66724 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-66724

Explore →

Is Your Infrastructure Affected by CVE-2026-66724?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs