CVE-2026-56234

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH 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
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: 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 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(high)
EPSS
15.9%
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 22× in last 7d / 44× 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 08:39 UTCEG score recompute
  4. 2026-07-06 08:39 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 08:47 UTCEG score recompute
  8. 2026-07-05 08:47 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 09:07 UTCEG score recompute
  12. 2026-07-04 09:07 UTCGHSA enrichment
  13. 2026-07-03 09:27 UTCEG score recompute
  14. 2026-07-03 09:27 UTCGHSA enrichment
  15. 2026-07-02 09:48 UTCEG score recompute
  16. 2026-07-02 09:48 UTCGHSA enrichment
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-07-01 10:09 UTCEG score recompute
  19. 2026-07-01 10:09 UTCGHSA enrichment
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 10:29 UTCEG score recompute
  22. 2026-06-30 10:29 UTCGHSA enrichment
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-29 10:48 UTCEG score recompute
Show 19 more
  1. 2026-06-29 10:48 UTCGHSA enrichment
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 11:08 UTCEG score recompute
  4. 2026-06-28 11:08 UTCGHSA enrichment
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 11:29 UTCEG score recompute
  8. 2026-06-27 11:29 UTCGHSA enrichment
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-26 11:49 UTCEG score recompute
  11. 2026-06-26 11:49 UTCGHSA enrichment
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 12:10 UTCEG score recompute
  14. 2026-06-25 12:10 UTCGHSA enrichment
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-24 12:30 UTCEG score recompute
  17. 2026-06-24 12:30 UTCGHSA enrichment
  18. 2026-06-23 12:42 UTCEG score recompute
  19. 2026-06-23 12:40 UTCMITRE cvelistV5first tracked

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 15.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-56234

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