CVE-2026-56670

HIGHPre-NVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-51400 (ENISA EUVD)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, the /view endpoint served uploaded SVG files inline because image/svg+xml and related XML content types were absent from the dangerous-content-type handling, allowing stored cross-site scripting in the ComfyUI origin. This issue is fixed in version 0.28.0.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.4%
EPSS %ILE
33rd
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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 31, 2026

Last Modified

October 23, 2026

Advisory Details (3)

Auto-updated Jul 31, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

v0.28.0

Patch available: Comfy-Org/ComfyUI v0.28.0

https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0
GitHub commit

commit 96e0e3585b41 (Comfy-Org/ComfyUI)

Fix landed in Comfy-Org/ComfyUI commit 96e0e3585b41 — awaiting tagged release

https://github.com/Comfy-Org/ComfyUI/commit/96e0e3585b41e1417442eaa14ec57f7b4ffcb5e0
GitHub advisoryMentions a patch (unverified)

Stored XSS via SVG file upload on the /view endpoint · Advisory · Comfy-Org/ComfyUI · GitHub

https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-rj8c-c4p8-3c5h

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 44× 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 151 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 51 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  6. 2026-10-25 14:18 UTCEG score recompute
  7. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  8. 2026-10-23 23:28 UTCEG score recompute
  9. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  12. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-10-18 03:29 UTCEG score recompute
  16. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-17 02:57 UTCEG score recompute
  18. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-12 15:54 UTCEG score recompute
  24. 2026-10-11 19:38 UTCEG score recompute
  25. 2026-10-11 16:53 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:16 UTCEG score recompute
  2. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  7. 2026-10-06 23:51 UTCEG score recompute
  8. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-05 19:57 UTCEG score recompute
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-04 23:53 UTCEG score recompute
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-04 06:34 UTCEG score recompute
  14. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-02 16:53 UTCEG score recompute
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-01 02:50 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-09-29 06:51 UTCEG score recompute
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-09-27 18:57 UTCEG score recompute
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  26. 2026-09-25 04:53 UTCEG score recompute
  27. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  28. 2026-09-23 23:54 UTCEG score recompute
  29. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-09-23 00:50 UTCEG score recompute
  31. 2026-09-22 13:36 UTCEG score recompute
  32. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-09-19 23:44 UTCEG score recompute
  34. 2026-09-19 00:46 UTCEG score recompute
  35. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-18 01:17 UTCEG score recompute
  37. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-17 01:25 UTCEG score recompute
  39. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-16 05:30 UTCEG score recompute
  41. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  42. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-13 23:31 UTCEG score recompute
  44. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  45. 2026-09-13 01:03 UTCEG score recompute
  46. 2026-09-11 14:58 UTCEG score recompute
  47. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  48. 2026-09-10 14:39 UTCEG score recompute
  49. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-09-09 08:18 UTCEG score recompute
  51. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  52. 2026-09-07 19:39 UTCEG score recompute
  53. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  54. 2026-09-06 17:20 UTCEG score recompute
  55. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  56. 2026-09-05 18:48 UTCEG score recompute
  57. 2026-09-05 04:47 UTCEG score recompute
  58. 2026-09-04 11:23 UTCEG score recompute
  59. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  60. 2026-09-03 09:16 UTCEG score recompute
  61. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  62. 2026-09-01 22:35 UTCEG score recompute
  63. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  64. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  65. 2026-08-30 21:25 UTCEG score recompute
  66. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  67. 2026-08-30 10:11 UTCEG score recompute
  68. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  69. 2026-08-29 22:25 UTCEG score recompute
  70. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  71. 2026-08-27 20:47 UTCEG score recompute
  72. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  73. 2026-08-26 19:16 UTCEG score recompute
  74. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  75. 2026-08-25 18:23 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-56670?
CVE-2026-56670 is a high-severity vulnerability; its CVE record was published on July 31, 2026. ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, the /view endpoint served uploaded SVG files inline because image/svg+xml and related XML content types were absent from the dangerous-content-type handling, allowing stored cross-site scripting…
When was the CVE record for CVE-2026-56670 published?
The CVE record for CVE-2026-56670 was published on July 31, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 23, 2026; the record at its source may have been updated since.
Is CVE-2026-56670 actively exploited?
CVE-2026-56670 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56670?
CVE-2026-56670 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56670?
A fix for CVE-2026-56670 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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