CVE-2026-64825

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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: the CNA's CVSS, EPSS, GitHub Security Advisory

Also known asEUVD-2026-46301 (ENISA EUVD) · GHSA-5hxg-r395-fqxx (GitHub Security Advisories) · PYSEC-2026-3669 (OSV.dev)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
9.3CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 21, 2026

Last Modified

November 8, 2026

Advisory Details (4)

Auto-updated Oct 8, 2026
Patch available. Sources: github_release, github_pr, github_commit.
Web page

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 2026.8.0b5 (contains commit 567fe8582898)

https://github.com/home-assistant/core/commit/567fe858289876b68b8162a77bd46e1e1af79752
GitHub pull request Patch Available

Reject backup uploads with unsafe inner name

Patch available: home-assistant/core 2026.8.0b5 (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.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
piphomeassistant @ 2026.6.0 (fixes < 2026.6.0)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
homeassistant0.10.0 ... 2026.6.0b4 (1583 versions)
  • every version up to 2026.6.0: fixed in 2026.6.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 45× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 336 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 236 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-11-13 10:39 UTCEchelonGraph re-scored
  3. 2026-11-13 10:39 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  4. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-11-12 11:15 UTCEchelonGraph re-scored
  6. 2026-11-12 11:15 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  7. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-11-11 12:01 UTCEchelonGraph re-scored
  9. 2026-11-11 12:01 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  10. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-11-10 12:44 UTCEchelonGraph re-scored
  12. 2026-11-10 12:44 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  13. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-11-09 13:30 UTCEchelonGraph re-scored
  15. 2026-11-09 13:30 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  16. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-11-08 14:16 UTCEchelonGraph re-scored
  18. 2026-11-08 14:16 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  19. 2026-11-08 04:02 UTCEchelonGraph re-scored
  20. 2026-11-08 04:02 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  21. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-11-07 04:47 UTCEchelonGraph re-scored
  23. 2026-11-07 04:47 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  24. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-11-06 15:25 UTCOSV refresh
Show 75 more
  1. 2026-11-06 05:33 UTCEchelonGraph re-scored
  2. 2026-11-06 05:33 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  3. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  4. 2026-11-05 06:19 UTCEchelonGraph re-scored
  5. 2026-11-05 06:19 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  6. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  7. 2026-11-04 07:04 UTCEchelonGraph re-scored
  8. 2026-11-04 07:04 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  9. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-11-03 07:48 UTCEchelonGraph re-scored
  11. 2026-11-03 07:48 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  12. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-11-02 08:34 UTCEchelonGraph re-scored
  14. 2026-11-02 08:33 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  15. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-11-01 09:19 UTCEchelonGraph re-scored
  17. 2026-11-01 09:19 UTCGHSA enrichmentGHSA-5hxg-r395-fqxx · GitHub severity CRITICAL · GitHub CVSS 9.3
  18. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-10-31 10:04 UTCEchelonGraph re-scored
  20. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  21. 2026-10-30 10:48 UTCEchelonGraph re-scored
  22. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-10-29 11:33 UTCEchelonGraph re-scored
  24. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-10-28 12:19 UTCEchelonGraph re-scored
  26. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  27. 2026-10-26 20:03 UTCEchelonGraph re-scored
  28. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  29. 2026-10-25 18:50 UTCEchelonGraph re-scored
  30. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  31. 2026-10-25 14:12 UTCEchelonGraph re-scored
  32. 2026-10-24 19:26 UTCEchelonGraph re-scored
  33. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  34. 2026-10-24 04:23 UTCEchelonGraph re-scored
  35. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  36. 2026-10-23 05:08 UTCEchelonGraph re-scored
  37. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  38. 2026-10-22 05:51 UTCEchelonGraph re-scored
  39. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  40. 2026-10-21 06:37 UTCEchelonGraph re-scored
  41. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  42. 2026-10-20 07:23 UTCEchelonGraph re-scored
  43. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  44. 2026-10-19 08:08 UTCEchelonGraph re-scored
  45. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  46. 2026-10-18 03:22 UTCEchelonGraph re-scored
  47. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  48. 2026-10-17 06:38 UTCEchelonGraph re-scored
  49. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  50. 2026-10-16 07:17 UTCEchelonGraph re-scored
  51. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  52. 2026-10-15 06:13 UTCEchelonGraph re-scored
  53. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  54. 2026-10-14 01:49 UTCEchelonGraph re-scored
  55. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  56. 2026-10-12 22:01 UTCEchelonGraph re-scored
  57. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  58. 2026-10-12 15:47 UTCEchelonGraph re-scored
  59. 2026-10-11 19:32 UTCEchelonGraph re-scored
  60. 2026-10-11 16:47 UTCEchelonGraph re-scored
  61. 2026-10-11 14:08 UTCEchelonGraph re-scored
  62. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  63. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  64. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  65. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  66. 2026-10-08 16:39 UTCEchelonGraph re-scored
  67. 2026-10-08 15:45 UTCEchelonGraph re-scored
  68. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  69. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  70. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  71. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  72. 2026-10-04 14:49 UTCEchelonGraph re-scored
  73. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  74. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  75. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile

Frequently asked(5)

What is CVE-2026-64825?
CVE-2026-64825 is a critical-severity vulnerability; its CVE record was 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 made public?
CVE-2026-64825 was made public on May 27, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on July 21, 2026. EchelonGraph's copy of the record carries a last-modified date of November 8, 2026; the record at its source may have been updated since.
Is CVE-2026-64825 actively exploited?
CVE-2026-64825 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64825?
CVE-2026-64825 has a CVSS base score of 9.3 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-64825?
A fix for CVE-2026-64825 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64825 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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