CVE-2026-64825

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-21. the CNA's CVSS baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: None knownExposed: 0

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

Home Assistant Core before 2026.6.0 contains a path traversal vulnerability that allows unauthenticated attackers to write arbitrary files to any directory on the host filesystem by uploading a crafted backup archive during the initial onboarding window. Attackers can manipulate the 'name' field inside the uploaded archive's backup.json to supply an absolute path, causing pathlib.Path.__truediv__ to discard the configured backup directory prefix and write attacker-controlled content to arbitrary locations, with full filesystem access when the process runs as root.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: 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
Severity93% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 28, 2026

Advisory Details (4)

Auto-updated Aug 23, 2026
Patch available. Sources: github_pr, github_commit, github_release.
generic

Home Assistant Core < 2026.6.0 Path Traversal File Write via Backup Upload | Advisories | VulnCheck

https://www.vulncheck.com/advisories/home-assistant-core-path-traversal-file-write-via-backup-upload
github_commit Patch Available

commit 567fe8582898 (home-assistant/core)

Patch available: home-assistant/core 2026.7.0b0 (contains commit 567fe8582898)

https://github.com/home-assistant/core/commit/567fe858289876b68b8162a77bd46e1e1af79752
github_pr Patch Available

Reject backup uploads with unsafe inner name

Patch available: home-assistant/core 2026.7.0b0 (PR #172368 merged 2026-05-28)

https://github.com/home-assistant/core/pull/172368
github_release Patch Available

2026.6.0

Patch available: home-assistant/core 2026.6.0

https://github.com/home-assistant/core/releases/tag/2026.6.0

Vendor Advisories for CVE-2026-64825(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
homeassistant0.10.0 ... 2026.6.0b4 (1583 versions)2026.6.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 162× 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 193 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64825?
CVE-2026-64825 is a critical vulnerability published on July 21, 2026. Home Assistant Core before 2026.6.0 contains a path traversal vulnerability that allows unauthenticated attackers to write arbitrary files to any directory on the host filesystem by uploading a crafted backup archive during the initial onboarding window. Attackers can manipulate the 'name' field…
When was CVE-2026-64825 disclosed?
CVE-2026-64825 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64825 actively exploited?
CVE-2026-64825 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 54.8% of all scored CVEs.
What is the CVSS score of CVE-2026-64825?
CVE-2026-64825 has a CVSS v4.0 base score of 9.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-64825?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64825, 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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