CVE-2026-56253

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: 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 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(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
36%
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 5× in last 7d / 57× 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 224 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 20:41 UTCEG score recompute
  11. 2026-08-30 20:41 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. 2026-08-25 01:56 UTCEG score recompute
  19. 2026-08-25 01:56 UTCGHSA enrichment
  20. 2026-08-24 13:57 UTCEG score recompute
  21. 2026-08-24 13:57 UTCGHSA enrichment
  22. 2026-08-23 23:16 UTCGHSA enrichment
  23. 2026-08-23 10:54 UTCEG score recompute
  24. 2026-08-23 10:54 UTCGHSA enrichment
  25. 2026-08-23 00:19 UTCEPSS rescore
Show 75 more
  1. 2026-08-22 22:56 UTCEG score recompute
  2. 2026-08-22 22:56 UTCGHSA enrichment
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-21 19:57 UTCGHSA enrichment
  5. 2026-08-21 07:59 UTCEG score recompute
  6. 2026-08-21 07:59 UTCGHSA enrichment
  7. 2026-08-20 22:55 UTCEPSS rescore
  8. 2026-08-20 20:00 UTCGHSA enrichment
  9. 2026-08-20 07:53 UTCEG score recompute
  10. 2026-08-20 07:53 UTCGHSA enrichment
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-19 05:47 UTCEG score recompute
  13. 2026-08-19 05:47 UTCGHSA enrichment
  14. 2026-08-18 13:48 UTCEPSS rescore
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 08:55 UTCGHSA enrichment
  17. 2026-08-16 20:57 UTCEG score recompute
  18. 2026-08-16 20:57 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 08:54 UTCEG score recompute
  21. 2026-08-16 08:54 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 20:54 UTCGHSA enrichment
  24. 2026-08-15 08:49 UTCEG score recompute
  25. 2026-08-15 08:49 UTCGHSA enrichment
  26. 2026-08-15 01:30 UTCEPSS rescore
  27. 2026-08-14 18:41 UTCGHSA enrichment
  28. 2026-08-14 06:43 UTCEG score recompute
  29. 2026-08-14 06:43 UTCGHSA enrichment
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 18:44 UTCGHSA enrichment
  32. 2026-08-13 05:25 UTCGHSA enrichment
  33. 2026-08-12 17:25 UTCEG score recompute
  34. 2026-08-12 17:25 UTCGHSA enrichment
  35. 2026-08-12 13:51 UTCEPSS rescore
  36. 2026-08-12 05:27 UTCGHSA enrichment
  37. 2026-08-11 17:29 UTCEG score recompute
  38. 2026-08-11 17:29 UTCGHSA enrichment
  39. 2026-08-11 05:24 UTCEG score recompute
  40. 2026-08-11 05:24 UTCGHSA enrichment
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 17:26 UTCGHSA enrichment
  43. 2026-08-10 05:24 UTCGHSA enrichment
  44. 2026-08-09 17:26 UTCEG score recompute
  45. 2026-08-09 17:26 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 05:28 UTCGHSA enrichment
  48. 2026-08-08 17:30 UTCEG score recompute
  49. 2026-08-08 17:30 UTCGHSA enrichment
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 05:31 UTCGHSA enrichment
  52. 2026-08-07 17:33 UTCEG score recompute
  53. 2026-08-07 17:33 UTCGHSA enrichment
  54. 2026-08-07 05:35 UTCGHSA enrichment
  55. 2026-08-06 17:36 UTCEG score recompute
  56. 2026-08-06 17:36 UTCGHSA enrichment
  57. 2026-08-06 13:47 UTCEPSS rescore
  58. 2026-08-06 05:38 UTCEG score recompute
  59. 2026-08-06 05:38 UTCGHSA enrichment
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-05 17:40 UTCGHSA enrichment
  62. 2026-08-05 03:36 UTCGHSA enrichment
  63. 2026-08-04 15:17 UTCEG score recompute
  64. 2026-08-04 15:17 UTCGHSA enrichment
  65. 2026-08-04 15:10 UTCEPSS rescore
  66. 2026-08-04 10:39 UTCEPSS rescore
  67. 2026-08-03 20:41 UTCEG score recompute
  68. 2026-08-03 20:41 UTCGHSA enrichment
  69. 2026-08-03 10:36 UTCEPSS rescore
  70. 2026-08-03 08:43 UTCGHSA enrichment
  71. 2026-08-02 20:30 UTCGHSA enrichment
  72. 2026-08-02 08:32 UTCEG score recompute
  73. 2026-08-02 08:32 UTCGHSA enrichment
  74. 2026-08-02 02:27 UTCEPSS rescore
  75. 2026-08-01 20:33 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 0% probability of exploitation in the next 30 days, which ranks it in the top 64.4% of all scored CVEs.
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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