CVE-2026-13493

LOWPre-NVD 3.13.1—
EchelonGraph scoreMEDIUM confidence

Score 3.1 from GitHub Security Advisory (severity: LOW) published 2026-06-28. a secondary CVSS source baseline 3.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
3.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.1Exploit: Elevated riskExposed: 0

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

A flaw has been found in AIDC-AI ComfyUI-Copilot up to 2.0.28. This issue affects some unknown processing of the file backend/controller/conversation_api.py of the component Workflow Checkpoint Restore Handler. Executing a manipulation can lead to improper control of resource identifiers. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is assessed as difficult. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

CVSS v3
3.1
EG Score
3.1(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity31% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

June 28, 2026

Last Modified

June 29, 2026

References (7)

Vendor Advisories for CVE-2026-13493(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 9× in last 7d / 44× 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.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-23 19:06 UTCEG score recompute
  3. 2026-08-23 19:06 UTCGHSA enrichment
  4. 2026-08-23 00:19 UTCEPSS rescore
  5. 2026-08-21 23:48 UTCEPSS rescore
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 15:56 UTCEG score recompute
  8. 2026-08-20 15:56 UTCGHSA enrichment
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-17 12:29 UTCEG score recompute
  12. 2026-08-17 12:28 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 01:30 UTCEPSS rescore
  16. 2026-08-14 09:20 UTCEG score recompute
  17. 2026-08-14 09:20 UTCGHSA enrichment
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-12 13:50 UTCEPSS rescore
  20. 2026-08-11 13:42 UTCEPSS rescore
  21. 2026-08-11 06:11 UTCEG score recompute
  22. 2026-08-11 06:11 UTCGHSA enrichment
  23. 2026-08-10 23:59 UTCEPSS rescore
  24. 2026-08-09 13:46 UTCEPSS rescore
  25. 2026-08-08 16:37 UTCEPSS rescore
Show 62 more
  1. 2026-08-08 03:02 UTCEG score recompute
  2. 2026-08-08 03:02 UTCGHSA enrichment
  3. 2026-08-06 13:46 UTCEPSS rescore
  4. 2026-08-05 19:17 UTCEPSS rescore
  5. 2026-08-04 23:54 UTCEG score recompute
  6. 2026-08-04 23:54 UTCGHSA enrichment
  7. 2026-08-04 15:09 UTCEPSS rescore
  8. 2026-08-04 10:38 UTCEPSS rescore
  9. 2026-08-03 10:35 UTCEPSS rescore
  10. 2026-08-02 02:26 UTCEPSS rescore
  11. 2026-08-01 20:43 UTCEG score recompute
  12. 2026-08-01 20:43 UTCGHSA enrichment
  13. 2026-08-01 04:15 UTCEPSS rescore
  14. 2026-07-30 16:27 UTCEPSS rescore
  15. 2026-07-30 01:30 UTCEPSS rescore
  16. 2026-07-29 17:34 UTCEG score recompute
  17. 2026-07-29 17:34 UTCGHSA enrichment
  18. 2026-07-28 15:36 UTCEPSS rescore
  19. 2026-07-27 14:13 UTCEPSS rescore
  20. 2026-07-26 14:54 UTCEPSS rescore
  21. 2026-07-26 14:54 UTCEPSS rescore
  22. 2026-07-26 14:24 UTCEG score recompute
  23. 2026-07-26 14:24 UTCGHSA enrichment
  24. 2026-07-25 14:17 UTCEPSS rescore
  25. 2026-07-24 14:17 UTCEPSS rescore
  26. 2026-07-23 14:18 UTCEPSS rescore
  27. 2026-07-23 03:05 UTCEG score recompute
  28. 2026-07-22 14:08 UTCEPSS rescore
  29. 2026-07-21 15:24 UTCEPSS rescore
  30. 2026-07-20 17:08 UTCEPSS rescore
  31. 2026-07-19 14:30 UTCEPSS rescore
  32. 2026-07-19 02:28 UTCEPSS rescore
  33. 2026-07-18 10:04 UTCEPSS rescore
  34. 2026-07-16 17:02 UTCEPSS rescore
  35. 2026-07-15 16:57 UTCEPSS rescore
  36. 2026-07-15 02:00 UTCEPSS rescore
  37. 2026-07-14 04:33 UTCGHSA enrichment
  38. 2026-07-13 22:30 UTCEPSS rescore
  39. 2026-07-13 06:12 UTCEPSS rescore
  40. 2026-07-12 05:46 UTCEPSS rescore
  41. 2026-07-11 08:27 UTCEPSS rescore
  42. 2026-07-11 01:23 UTCGHSA enrichment
  43. 2026-07-09 19:10 UTCEPSS rescore
  44. 2026-07-08 15:15 UTCEPSS rescore
  45. 2026-07-08 15:15 UTCEPSS rescore
  46. 2026-07-07 22:13 UTCGHSA enrichment
  47. 2026-07-07 13:46 UTCEPSS rescore
  48. 2026-07-06 16:27 UTCEPSS rescore
  49. 2026-07-06 02:23 UTCEPSS rescore
  50. 2026-07-05 02:30 UTCEPSS rescore
  51. 2026-07-05 02:30 UTCEPSS rescore
  52. 2026-07-04 19:04 UTCGHSA enrichment
  53. 2026-07-04 06:31 UTCEPSS rescore
  54. 2026-07-01 15:53 UTCGHSA enrichment
  55. 2026-07-01 15:06 UTCEPSS rescore
  56. 2026-07-01 15:06 UTCEPSS rescore
  57. 2026-06-29 15:26 UTCNVD updateCVSS v4 → 1.3
  58. 2026-06-29 14:06 UTCEPSS rescore
  59. 2026-06-29 13:32 UTCMITRE cvelistV5CVSS v4 → 2.3
  60. 2026-06-28 13:36 UTCNVD updateCVSS v4 → 1.3
  61. 2026-06-28 12:44 UTCEG score recompute
  62. 2026-06-28 12:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-13493?
CVE-2026-13493 is a low vulnerability published on June 28, 2026. A flaw has been found in AIDC-AI ComfyUI-Copilot up to 2.0.28. This issue affects some unknown processing of the file backend/controller/conversation_api.py of the component Workflow Checkpoint Restore Handler. Executing a manipulation can lead to improper control of resource identifiers. The…
When was CVE-2026-13493 disclosed?
CVE-2026-13493 was first published in the National Vulnerability Database on June 28, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13493 actively exploited?
CVE-2026-13493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.7% of all scored CVEs.
What is the CVSS score of CVE-2026-13493?
CVE-2026-13493 has a CVSS v3 base score of 3.1 (NVD).
How do I remediate CVE-2026-13493?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13493, 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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