CVE-2026-68771

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-01. The CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 9.8Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via the unauthenticated POST /upload/image endpoint and then queue a workflow graph via POST /prompt referencing the uploaded file, causing torch.load to deserialize the attacker-controlled pickle payload using __reduce__ and execute arbitrary commands as the ComfyUI process user.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100CISA SSVC

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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. 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 until it ships, then apply the release.
EPSS PROB
1.1%
EPSS %ILE
65th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. 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 until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 31, 2026

Last Modified

September 24, 2026

Advisory Details (4)

Auto-updated Oct 8, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization | Advisories | VulnCheck

https://www.vulncheck.com/advisories/comfyui-unauthenticated-rce-via-loadtrainingdataset-pickle-deserialization
github_commit

commit 94ee49b16128 (Comfy-Org/ComfyUI)

Fix landed in Comfy-Org/ComfyUI commit 94ee49b16128 — awaiting tagged release

https://github.com/Comfy-Org/ComfyUI/commit/94ee49b1612824366a8631ea069b2a1fa5c73720
generic

GitHub - Comfy-Org/ComfyUI: The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. The fastest local inference engine in the world. · GitHub

https://github.com/Comfy-Org/ComfyUI
github_pr

harden: load training-dataset shards with weights_only=True

Fix merged in Comfy-Org/ComfyUI PR #14543 on 2026-06-18 — awaiting tagged release

https://github.com/Comfy-Org/ComfyUI/pull/14543

Vendor Advisories for CVE-2026-68771(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 / 117× 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 420 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-68771?
CVE-2026-68771 is a critical vulnerability published on July 31, 2026. ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via…
When was CVE-2026-68771 disclosed?
CVE-2026-68771 was first published on July 31, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68771 actively exploited?
CVE-2026-68771 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (65th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68771?
CVE-2026-68771 has a CVSS base score of 9.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-68771?
An upstream fix for CVE-2026-68771 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-68771 are linked in the Vendor Advisories panel on this page.

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