CVE-2026-56228

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH 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
Trending — 3 sources updated this week
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.9Exploit: NoneExposed: 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(high)
EPSS
19.0%
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 24× in last 7d / 54× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 15:30 UTCEG score recompute
  4. 2026-07-06 15:30 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 15:18 UTCEG score recompute
  8. 2026-07-05 15:18 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 15:22 UTCEG score recompute
  12. 2026-07-04 15:22 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 15:17 UTCEG score recompute
  16. 2026-07-03 15:17 UTCGHSA enrichment
  17. 2026-07-02 15:24 UTCEG score recompute
  18. 2026-07-02 15:24 UTCGHSA enrichment
  19. 2026-07-01 15:31 UTCEG score recompute
  20. 2026-07-01 15:31 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 15:38 UTCEG score recompute
  24. 2026-06-30 15:38 UTCGHSA enrichment
  25. 2026-06-29 15:46 UTCEG score recompute
Show 29 more
  1. 2026-06-29 15:45 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-29 14:06 UTCEPSS rescore
  4. 2026-06-28 15:50 UTCEG score recompute
  5. 2026-06-28 15:50 UTCGHSA enrichment
  6. 2026-06-28 14:07 UTCEPSS rescore
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 15:57 UTCEG score recompute
  10. 2026-06-27 15:56 UTCGHSA enrichment
  11. 2026-06-27 03:08 UTCEPSS rescore
  12. 2026-06-26 16:03 UTCEG score recompute
  13. 2026-06-26 16:03 UTCGHSA enrichment
  14. 2026-06-25 16:10 UTCEG score recompute
  15. 2026-06-25 16:10 UTCGHSA enrichment
  16. 2026-06-25 13:49 UTCEPSS rescore
  17. 2026-06-24 16:18 UTCEG score recompute
  18. 2026-06-24 16:17 UTCGHSA enrichment
  19. 2026-06-24 14:05 UTCEPSS rescore
  20. 2026-06-23 21:33 UTCEPSS rescore
  21. 2026-06-23 21:33 UTCEPSS rescore
  22. 2026-06-23 16:24 UTCEG score recompute
  23. 2026-06-23 16:24 UTCGHSA enrichment
  24. 2026-06-22 16:32 UTCEG score recompute
  25. 2026-06-22 16:31 UTCGHSA enrichment
  26. 2026-06-21 16:32 UTCEG score recompute
  27. 2026-06-21 16:32 UTCGHSA enrichment
  28. 2026-06-20 16:38 UTCEG score recompute
  29. 2026-06-20 16:35 UTCNVD updatefirst tracked

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 19.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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.

Dependency Blast Radius

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