CVE-2026-56230

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 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 a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited key ID to bypass authorization checks and access unauthorized cross-tenant resources across multiple API endpoints.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Advisory Details (2)

Auto-updated Jul 2, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Capgo - Broken Object Level Authorization via x-limited-key-id Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-broken-object-level-authorization-via-x-limited-key-id-header
github Patch Available🟡 PoC Available

High Severity BOLA/IDOR: x-limited-key-id enables cross-tenant limited-key adoption in middlewareKey() · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-cppm-733w-hg86

Vendor Advisories for CVE-2026-56230(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 17× in last 7d / 108× 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 189 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56230?
CVE-2026-56230 is a high vulnerability published on July 1, 2026. Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited…
When was CVE-2026-56230 disclosed?
CVE-2026-56230 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56230 actively exploited?
CVE-2026-56230 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 61.3% of all scored CVEs.
What is the CVSS score of CVE-2026-56230?
CVE-2026-56230 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-56230?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56230, 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.

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