CVE-2026-56055

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. 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: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Subscriber PHP Object Injection in RealHomes <= 4.5.3 versions.

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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-56055(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 / 103× 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 203 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56055?
CVE-2026-56055 is a high vulnerability published on June 26, 2026. Subscriber PHP Object Injection in RealHomes <= 4.5.3 versions.
When was CVE-2026-56055 disclosed?
CVE-2026-56055 was first published in the National Vulnerability Database on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56055 actively exploited?
CVE-2026-56055 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.2% of all scored CVEs.
What is the CVSS score of CVE-2026-56055?
CVE-2026-56055 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-56055?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56055, 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-2026-56055

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