CVE-2026-56254

HIGHPre-NVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: None knownExposed: 0

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

In @capgo/capacitor-updater (Cap-go/capgo) before 12.128.2, the end-to-end encryption scheme distributes the private key to each device that downloads the app. Because the public key can be derived from the private key, an attacker performing a man-in-the-middle attack or compromising the Capgo server can create a validly signed update bundle and cause devices to install an update not produced by the original app maker.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

Advisory Details (2)

Auto-updated Jul 10, 2026
Patch available. Sources: github.
generic

capacitor-updater - End-to-End Encryption Bypass via Private Key Distribution | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capacitor-updater-end-to-end-encryption-bypass-via-private-key-distribution
github Patch Available

End-to-end encryption vulnerability · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-j2f4-4pfc-p8rx

Vendor Advisories for CVE-2026-56254(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 24× in last 7d / 112× 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 150 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56254?
CVE-2026-56254 is a high vulnerability published on July 10, 2026. In @capgo/capacitor-updater (Cap-go/capgo) before 12.128.2, the end-to-end encryption scheme distributes the private key to each device that downloads the app. Because the public key can be derived from the private key, an attacker performing a man-in-the-middle attack or compromising the Capgo…
When was CVE-2026-56254 disclosed?
CVE-2026-56254 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-2026-56254 actively exploited?
CVE-2026-56254 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 90.8% of all scored CVEs.
What is the CVSS score of CVE-2026-56254?
CVE-2026-56254 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-56254?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56254, 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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