CVE-2026-67920

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
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: Elevated riskExposed: 0

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

An issue in Halo 2.25.4 allows a remote attacker to execute arbitrary code via the run.halo.app.migration.impl.MigrationServiceImpl.restoreWorkdir(), and org.springframework.util.FileSystemUtils.copyRecursively() components

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 31, 2026

Advisory Details (3)

Auto-updated Aug 20, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr.
generic🟡 PoC Available

CVE-2026-67920.md · GitHub

https://gist.github.com/unpredictable21/f05d4b57867a2e83a5f991ff542215b2
github_pr Patch Available

Support backup and restore

Patch available: halo-dev/halo v2.22.5 (PR #4206 merged 2023-07-24)

https://github.com/halo-dev/halo/pull/4206
generic

GitHub - halo-dev/halo: Halo 是一款强大易用的开源建站工具，从个人博客、知识库，到企业官网、在线商城，Halo 都能助您轻松实现，一站式满足您的多样化建站需求。 · GitHub

https://github.com/halo-dev/halo

Vendor Advisories for CVE-2026-67920(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 / 109× 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 117 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-67920?
CVE-2026-67920 is a high vulnerability published on August 18, 2026. An issue in Halo 2.25.4 allows a remote attacker to execute arbitrary code via the run.halo.app.migration.impl.MigrationServiceImpl.restoreWorkdir(), and org.springframework.util.FileSystemUtils.copyRecursively() components
When was CVE-2026-67920 disclosed?
CVE-2026-67920 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67920 actively exploited?
CVE-2026-67920 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 50.3% of all scored CVEs.
What is the CVSS score of CVE-2026-67920?
CVE-2026-67920 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67920?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67920, 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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