CVE-2026-56319

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH 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
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: 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 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
4.3(high)
EPSS
8.5%
KEV
Not listed

Published

June 20, 2026

Last Modified

June 22, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
🔬 Proof of concept available. Patch available. 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
github Patch Available🟡 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 25× 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.

  1. 2026-07-07 05:23 UTCEG score recompute
  2. 2026-07-07 05:23 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 07:17 UTCEG score recompute
  6. 2026-07-06 07:17 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 09:14 UTCEG score recompute
  10. 2026-07-05 09:14 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 11:02 UTCEG score recompute
  14. 2026-07-04 11:02 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-03 13:00 UTCEG score recompute
  18. 2026-07-03 13:00 UTCGHSA enrichment
  19. 2026-07-02 15:00 UTCEG score recompute
  20. 2026-07-02 14:59 UTCGHSA enrichment
  21. 2026-07-01 16:58 UTCEG score recompute
  22. 2026-07-01 16:58 UTCGHSA enrichment
  23. 2026-07-01 15:07 UTCEPSS rescore
  24. 2026-06-30 18:57 UTCEG score recompute
  25. 2026-06-30 18:57 UTCGHSA enrichment
Show 32 more
  1. 2026-06-29 20:56 UTCEG score recompute
  2. 2026-06-29 20:56 UTCGHSA enrichment
  3. 2026-06-29 14:06 UTCEPSS rescore
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-28 22:55 UTCEG score recompute
  6. 2026-06-28 22:55 UTCGHSA enrichment
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-28 00:54 UTCEG score recompute
  11. 2026-06-28 00:54 UTCGHSA enrichment
  12. 2026-06-27 03:08 UTCEPSS rescore
  13. 2026-06-27 02:53 UTCEG score recompute
  14. 2026-06-27 02:53 UTCGHSA enrichment
  15. 2026-06-26 04:52 UTCEG score recompute
  16. 2026-06-26 04:52 UTCGHSA enrichment
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-25 06:51 UTCEG score recompute
  19. 2026-06-25 06:50 UTCGHSA enrichment
  20. 2026-06-24 14:05 UTCEPSS rescore
  21. 2026-06-24 08:43 UTCEG score recompute
  22. 2026-06-24 08:43 UTCGHSA enrichment
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-23 10:42 UTCEG score recompute
  26. 2026-06-23 10:42 UTCGHSA enrichment
  27. 2026-06-22 12:41 UTCEG score recompute
  28. 2026-06-22 12:41 UTCGHSA enrichment
  29. 2026-06-21 14:37 UTCEG score recompute
  30. 2026-06-21 14:37 UTCGHSA enrichment
  31. 2026-06-20 16:36 UTCEG score recompute
  32. 2026-06-20 16:35 UTCNVD updatefirst tracked

Related CVEs(same CWE)

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 in the National Vulnerability Database 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 8.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56319?
CVE-2026-56319 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-56319?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56319, 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-2026-56319

Explore →

Is Your Infrastructure Affected by CVE-2026-56319?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs