CVE-2026-19371

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.6% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-08-13.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-09 22:15Z26 DAYS AGO

Last updated

2026-08-13 19:09Z22 DAYS AGO

Reserved

2026-08-09

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

63c1ebc8381f5402ac9485e6e1269ad0707fb459e32ad8e6281136d4831f4ca2

• vuldb.comVDB-387255 | Nikolaibibo claude-comfyui-mcp comfy_upload_image utils.ts copyFileSync path traversalhttps://vuldb.com/vuln/387255vdb-entrytechnical-description
• vuldb.comVDB-387255 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/387255/ctisignaturepermissions-required
• vuldb.comCVE-2026-19371 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-19371third-party-advisory
• vuldb.comSubmit #866269 | Nikolaibibo claude-comfyui-mcp 1.0.0 Path Traversalhttps://vuldb.com/submit/866269third-party-advisory
• github.comhttps://github.com/Nikolaibibo/claude-comfyui-mcp/issues/3issue-tracking
• github.comhttps://github.com/Nikolaibibo/claude-comfyui-mcp/product