CVE-2026-56335

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: 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 authorization bypass vulnerability where write-scoped API keys can directly mutate protected channel configuration fields through PostgREST by exploiting a null authentication check in the immutability trigger. Attackers with write API keys can modify sensitive channel attributes such as public, allow_emulator, and security-related flags outside intended application routes.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

Advisory Details (2)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Write-scoped API keys can bypass channels immutability and directly mutate protected channel configuration via PostgREST · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-ph9c-vwjq-pqhj
generic

Capgo - Channel Configuration Mutation via Write-Scoped API Keys | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-channel-configuration-mutation-via-write-scoped-api-keys

Vendor Advisories for CVE-2026-56335(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 / 81× 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 126 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56335?
CVE-2026-56335 is a medium vulnerability published on July 10, 2026. Capgo before 12.128.2 contains an authorization bypass vulnerability where write-scoped API keys can directly mutate protected channel configuration fields through PostgREST by exploiting a null authentication check in the immutability trigger. Attackers with write API keys can modify sensitive…
When was CVE-2026-56335 disclosed?
CVE-2026-56335 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56335 actively exploited?
CVE-2026-56335 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-2026-56335?
CVE-2026-56335 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-56335?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56335, 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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