CVE-2026-56253

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-21. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: 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 an improper access control vulnerability in the public.get_org_members RPC function that allows unauthenticated attackers to enumerate organization members. Attackers can invoke the endpoint using only the public sb_publishable_* key and an organization UUID to retrieve sensitive member information including email addresses, user IDs, roles, and pending invitations.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
16.1%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jun 22, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Capgo - Unauthenticated Organization Member Email Disclosure via get_org_members RPC | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-unauthenticated-organization-member-email-disclosure-via-get-org-members-rpc
github Patch Available🟡 PoC Available

Unauthenticated org member email disclosure via Supabase RPC get_org_members callable with public sb_publishable_* key · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-x34h-gc65-f6g4

Vendor Advisories for CVE-2026-56253(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 38× in last 7d / 85× 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. 2026-07-07 04:43 UTCEG score recompute
  2. 2026-07-07 04:43 UTCGHSA enrichment
  3. 2026-07-06 16:36 UTCEG score recompute
  4. 2026-07-06 16:36 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 04:37 UTCEG score recompute
  8. 2026-07-06 04:37 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 16:23 UTCEG score recompute
  12. 2026-07-05 16:22 UTCGHSA enrichment
  13. 2026-07-05 04:18 UTCEG score recompute
  14. 2026-07-05 04:18 UTCGHSA enrichment
  15. 2026-07-05 02:31 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 16:17 UTCEG score recompute
  18. 2026-07-04 16:17 UTCGHSA enrichment
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 04:19 UTCEG score recompute
  22. 2026-07-04 04:18 UTCGHSA enrichment
  23. 2026-07-03 15:59 UTCEG score recompute
  24. 2026-07-03 15:58 UTCGHSA enrichment
  25. 2026-07-03 03:57 UTCEG score recompute
Show 60 more
  1. 2026-07-03 03:57 UTCGHSA enrichment
  2. 2026-07-02 15:59 UTCEG score recompute
  3. 2026-07-02 15:59 UTCGHSA enrichment
  4. 2026-07-02 04:00 UTCEG score recompute
  5. 2026-07-02 04:00 UTCGHSA enrichment
  6. 2026-07-01 16:01 UTCEG score recompute
  7. 2026-07-01 16:01 UTCGHSA enrichment
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 04:03 UTCEG score recompute
  10. 2026-07-01 04:02 UTCGHSA enrichment
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 16:03 UTCEG score recompute
  13. 2026-06-30 16:03 UTCGHSA enrichment
  14. 2026-06-30 03:58 UTCEG score recompute
  15. 2026-06-30 03:58 UTCGHSA enrichment
  16. 2026-06-29 16:00 UTCEG score recompute
  17. 2026-06-29 16:00 UTCGHSA enrichment
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 04:01 UTCEG score recompute
  21. 2026-06-29 04:01 UTCGHSA enrichment
  22. 2026-06-28 15:44 UTCEG score recompute
  23. 2026-06-28 15:44 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 04:56 UTCEPSS rescore
  27. 2026-06-28 03:43 UTCEG score recompute
  28. 2026-06-28 03:43 UTCGHSA enrichment
  29. 2026-06-27 15:44 UTCEG score recompute
  30. 2026-06-27 15:44 UTCGHSA enrichment
  31. 2026-06-27 03:45 UTCEG score recompute
  32. 2026-06-27 03:45 UTCGHSA enrichment
  33. 2026-06-27 03:08 UTCEPSS rescore
  34. 2026-06-26 15:46 UTCEG score recompute
  35. 2026-06-26 15:46 UTCGHSA enrichment
  36. 2026-06-26 03:43 UTCEG score recompute
  37. 2026-06-26 03:43 UTCGHSA enrichment
  38. 2026-06-25 15:44 UTCEG score recompute
  39. 2026-06-25 15:44 UTCGHSA enrichment
  40. 2026-06-25 13:49 UTCEPSS rescore
  41. 2026-06-25 03:46 UTCEG score recompute
  42. 2026-06-25 03:46 UTCGHSA enrichment
  43. 2026-06-24 15:46 UTCEG score recompute
  44. 2026-06-24 15:46 UTCGHSA enrichment
  45. 2026-06-24 14:05 UTCEPSS rescore
  46. 2026-06-24 03:47 UTCEG score recompute
  47. 2026-06-24 03:47 UTCGHSA enrichment
  48. 2026-06-23 21:33 UTCEPSS rescore
  49. 2026-06-23 21:33 UTCEPSS rescore
  50. 2026-06-23 15:47 UTCEG score recompute
  51. 2026-06-23 15:47 UTCGHSA enrichment
  52. 2026-06-23 03:46 UTCEG score recompute
  53. 2026-06-23 03:45 UTCGHSA enrichment
  54. 2026-06-22 19:39 UTCNVD updateCVSS v4 → 8.7
  55. 2026-06-22 15:40 UTCEG score recompute
  56. 2026-06-22 15:40 UTCGHSA enrichment
  57. 2026-06-22 03:38 UTCEG score recompute
  58. 2026-06-22 03:37 UTCGHSA enrichment
  59. 2026-06-21 15:38 UTCEG score recompute
  60. 2026-06-21 15:38 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56253?
CVE-2026-56253 is a high vulnerability published on June 21, 2026. Capgo before 12.128.2 contains an improper access control vulnerability in the public.getorgmembers RPC function that allows unauthenticated attackers to enumerate organization members. Attackers can invoke the endpoint using only the public sbpublishable* key and an organization UUID to retrieve…
When was CVE-2026-56253 disclosed?
CVE-2026-56253 was first published in the National Vulnerability Database on June 21, 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-2026-56253 actively exploited?
CVE-2026-56253 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56253?
CVE-2026-56253 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-56253?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56253, 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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