CVE-2026-65700

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-23. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.5%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists h2oai h2ogpt versions up to and including 0.2.1 as affected. No release containing a fix is confirmed on record.

h2oGPT through 0.2.1 contains a path traversal vulnerability in the OpenAI-compatible files API that allows unauthenticated remote attackers to read, write, and delete arbitrary files accessible to the server process by supplying traversal sequences in the bearer token. The get_user_dir function in openai_server/backend_utils.py uses the bearer token string unsanitized as a path component via os.path.join, and because the default API key is EMPTY authentication is bypassed, enabling attackers to traverse outside the intended user directory through the file content, delete, and upload endpoints to achieve remote code execution by writing to startup hooks or application-loaded files.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
1.5%
EPSS %ILE
73rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 23, 2026

Last Modified

July 27, 2026

Advisory Details (2)

Auto-updated Oct 13, 2026
No fix on record yet.
Web page

h2oGPT 0.2.1 Path Traversal via OpenAI-compatible Files API | Advisories | VulnCheck

https://www.vulncheck.com/advisories/h2ogpt-path-traversal-via-openai-compatible-files-api
Web page

oss/h2ogpt.md at main · geo-chen/oss · GitHub

https://github.com/geo-chen/oss/blob/main/h2ogpt.md

Vendor Advisories for CVE-2026-65700(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 16× in last 7d / 68× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 391 refreshes 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 291 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 01:48 UTCEG score recompute
  2. 2026-10-14 01:48 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  4. 2026-10-12 22:01 UTCEG score recompute
  5. 2026-10-12 22:00 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  7. 2026-10-12 15:46 UTCEG score recompute
  8. 2026-10-12 06:04 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-11 19:31 UTCEG score recompute
  10. 2026-10-11 16:47 UTCEG score recompute
  11. 2026-10-11 14:08 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  17. 2026-10-06 15:18 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  18. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  20. 2026-10-04 12:42 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-04 08:20 UTCEG score recompute
  22. 2026-10-04 08:20 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-03 14:26 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  24. 2026-10-03 03:24 UTCEG score recompute
  25. 2026-10-03 03:24 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 75 more
  1. 2026-10-02 17:56 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  2. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  3. 2026-10-01 15:15 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-01 10:58 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-01 06:16 UTCEG score recompute
  6. 2026-10-01 06:16 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  8. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  9. 2026-09-28 13:38 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-09-28 09:22 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-09-28 05:05 UTCEG score recompute
  12. 2026-09-28 05:05 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-09-26 15:59 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  14. 2026-09-24 11:10 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-09-24 06:53 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-09-24 02:37 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-09-23 22:21 UTCEG score recompute
  18. 2026-09-23 22:21 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-09-23 17:54 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  20. 2026-09-23 11:36 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-09-23 07:15 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-09-23 02:59 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-09-22 22:42 UTCEG score recompute
  24. 2026-09-22 22:42 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-09-20 06:05 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-09-20 01:46 UTCEG score recompute
  27. 2026-09-20 01:46 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-09-18 22:31 UTCEG score recompute
  29. 2026-09-18 22:31 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-09-18 19:28 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  31. 2026-09-18 11:42 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-09-18 07:20 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-09-18 03:04 UTCEG score recompute
  34. 2026-09-18 03:04 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-09-17 09:17 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-09-17 02:01 UTCEG score recompute
  37. 2026-09-17 02:01 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  39. 2026-09-16 12:00 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-09-16 06:46 UTCEG score recompute
  41. 2026-09-16 06:46 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-09-16 05:15 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  43. 2026-09-14 16:13 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-09-14 11:12 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-09-14 06:56 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-09-14 02:39 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-09-13 22:22 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-09-13 17:23 UTCEG score recompute
  49. 2026-09-13 17:23 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-09-13 13:06 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-09-13 08:47 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-09-13 04:29 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-09-13 00:12 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-09-12 18:29 UTCEG score recompute
  55. 2026-09-12 18:29 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-09-12 14:12 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-09-12 09:54 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-09-12 05:37 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-09-12 01:17 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-09-11 21:00 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-09-11 16:43 UTCEG score recompute
  62. 2026-09-11 16:43 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-09-11 14:53 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  64. 2026-09-11 09:37 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  65. 2026-09-11 07:25 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-09-11 03:08 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-09-10 20:56 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-09-10 15:09 UTCEG score recompute
  69. 2026-09-10 15:09 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-09-09 08:54 UTCEG score recompute
  71. 2026-09-09 08:54 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-09-08 22:01 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  73. 2026-09-08 01:46 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-09-07 21:29 UTCEG score recompute
  75. 2026-09-07 21:29 UTCGHSA enrichmentGHSA-ffpm-9hgc-84cg · GitHub severity CRITICAL · GitHub CVSS 9.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65700?
CVE-2026-65700 is a critical-severity vulnerability; its CVE record was published on July 23, 2026. h2oGPT through 0.2.1 contains a path traversal vulnerability in the OpenAI-compatible files API that allows unauthenticated remote attackers to read, write, and delete arbitrary files accessible to the server process by supplying traversal sequences in the bearer token. The getuserdir function in…
When was CVE-2026-65700 made public?
CVE-2026-65700 was made public on July 17, 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 23, 2026. EchelonGraph's copy of the record carries a last-modified date of July 27, 2026; the record at its source may have been updated since.
Is CVE-2026-65700 actively exploited?
CVE-2026-65700 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.5% probability of exploitation in the next 30 days (73rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-65700?
CVE-2026-65700 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-65700?
No fix for CVE-2026-65700 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists h2oai h2ogpt versions up to and including 0.2.1 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-65700 are linked in the Vendor Advisories panel on this page.

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