CVE-2026-56319

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-06-20. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.3Exploit: None knownExposed services: Not assessed

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

Capgo before 12.128.2 contains an information disclosure vulnerability in the GET /statistics/app/:app_id endpoint that allows app-limited API keys to distinguish existing sibling app IDs through differential error responses. Attackers can enumerate real app IDs outside their allowed scope by observing 500 PGRST116 errors for inaccessible apps versus 401 errors for nonexistent apps, breaking tenant isolation.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

Published

June 20, 2026

Last Modified

June 22, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
🔬 Proof of concept available. No fix on record yet. Sources: github.
generic

Capgo - App Existence Oracle via GET /statistics/app/:app_id | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-app-existence-oracle-via-get-statistics-app-app-id
githubMentions a patch (unverified)🟡 PoC Available

App-limited API keys can distinguish existing sibling app IDs via GET /statistics/app/:app_id (401 for fake apps vs 500/PGRST116 for real inaccessible apps) · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-73p9-mprg-7r75

Vendor Advisories for CVE-2026-56319(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 7× in last 7d / 28× 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 201 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-56319?
CVE-2026-56319 is a medium vulnerability published on June 20, 2026. Capgo before 12.128.2 contains an information disclosure vulnerability in the GET /statistics/app/:app_id endpoint that allows app-limited API keys to distinguish existing sibling app IDs through differential error responses. Attackers can enumerate real app IDs outside their allowed scope by…
When was CVE-2026-56319 disclosed?
CVE-2026-56319 was first published on June 20, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56319 actively exploited?
CVE-2026-56319 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56319?
CVE-2026-56319 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56319?
No fix for CVE-2026-56319 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-56319 are linked in the Vendor Advisories panel on this page.

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