CVE-2026-56234

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-06-23. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validate_password_compliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildcard origin allowance and lacks rate limiting, enabling attackers to perform password spraying and credential stuffing attacks to compromise user accounts.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jun 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Public-key accessible credential-check endpoint enables password spraying (CORS *, no rate limiting) via /functions/v1/private/validate_password_compliance · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5
generic

Capgo - Password Spraying via Public-Key Accessible Credential Validation Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-password-spraying-via-public-key-accessible-credential-validation-endpoint

Vendor Advisories for CVE-2026-56234(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 15× in last 7d / 77× 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 152 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56234?
CVE-2026-56234 is a medium vulnerability published on June 23, 2026. Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validatepasswordcompliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildcard origin allowance and lacks rate…
When was CVE-2026-56234 disclosed?
CVE-2026-56234 was first published in the National Vulnerability Database 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-2026-56234 actively exploited?
CVE-2026-56234 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 67.0% of all scored CVEs.
What is the CVSS score of CVE-2026-56234?
CVE-2026-56234 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-56234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56234, 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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