CVE-2026-56303

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-11. 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
7.5EG
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 information disclosure vulnerability in the find_apikey_by_value PostgreSQL function marked SECURITY DEFINER and executable by the anon role. Unauthenticated attackers can call this function via the /rest/v1/rpc/find_apikey_by_value endpoint to retrieve sensitive API key metadata including user_id, mode, org scoping, and expiration details when supplied a valid key value.

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
38%
KEV
Not listed

Published

July 11, 2026

Last Modified

July 13, 2026

Advisory Details (2)

Auto-updated Jul 11, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Capgo - Unauthenticated API Key Metadata Disclosure via SECURITY DEFINER RPC Function | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-unauthenticated-api-key-metadata-disclosure-via-security-definer-rpc-function
github Patch Available🟡 PoC Available

Unauthenticated SECURITY DEFINER RPC find_apikey_by_value Exposes API Key Metadata to anon · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-2xjq-h43m-592f

Vendor Advisories for CVE-2026-56303(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 18× in last 7d / 106× 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 158 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56303?
CVE-2026-56303 is a high vulnerability published on July 11, 2026. Capgo before 12.128.2 contains an information disclosure vulnerability in the findapikeybyvalue PostgreSQL function marked SECURITY DEFINER and executable by the anon role. Unauthenticated attackers can call this function via the /rest/v1/rpc/findapikeybyvalue endpoint to retrieve sensitive API key…
When was CVE-2026-56303 disclosed?
CVE-2026-56303 was first published in the National Vulnerability Database on July 11, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56303 actively exploited?
CVE-2026-56303 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 62.0% of all scored CVEs.
What is the CVSS score of CVE-2026-56303?
CVE-2026-56303 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-56303?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56303, 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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