CVE-2026-56228

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-06-20. a secondary CVSS source baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

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

Capgo before 12.128.2 fails to enforce a maximum value on the minimum password length field in its password policy configuration. An authenticated organization administrator can set an extremely large numeric value (e.g., billions of characters) as the minimum password length, making compliance impossible for all organization members. Once the policy is enabled, users (including administrators) are unable to change their passwords or access the organization, resulting in an organization-wide account lockout and application-level denial of service.

CVSS v3
4.9
EG Score
4.9(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

June 20, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
Patch available. Sources: github.
generic

Capgo - Denial of Service via Improper Password Policy Length Validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-denial-of-service-via-improper-password-policy-length-validation
github Patch Available

🛡️ Bug Report: Improper Input Validation in Password Policy Allows Extremely Large Password Length Leading to Organization-wide Account Lockout (Application-Level DoS) · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-vhjp-62qf-33mx

Vendor Advisories for CVE-2026-56228(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 / 49× 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 174 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56228?
CVE-2026-56228 is a medium vulnerability published on June 20, 2026. Capgo before 12.128.2 fails to enforce a maximum value on the minimum password length field in its password policy configuration. An authenticated organization administrator can set an extremely large numeric value (e.g., billions of characters) as the minimum password length, making compliance…
When was CVE-2026-56228 disclosed?
CVE-2026-56228 was first published in the National Vulnerability Database on June 20, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56228 actively exploited?
CVE-2026-56228 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 61.0% of all scored CVEs.
What is the CVSS score of CVE-2026-56228?
CVE-2026-56228 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-56228?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56228, 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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