Description
Rembg is a tool to remove images background. Prior to 2.0.75, a path traversal vulnerability in the rembg HTTP server allows unauthenticated remote attackers to read arbitrary files from the server's filesystem. By sending a crafted request with a malicious model_path parameter, an attacker can force the server to attempt loading any file as an ONNX model, revealing file existence, permissions, and potentially file contents through error messages. This vulnerability is fixed in 2.0.75.
Published: 2026-04-10
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote file disclosure via path traversal
Action: Apply update
AI Analysis

Impact

The vulnerability allows an unauthenticated attacker to craft a request that forces the Rembg HTTP server to load a file as an ONNX model, potentially revealing file existence, permissions, and content through error messages. This path traversal weakness is captured by CWE‑22 and CWE‑73 and results in unauthorized read of arbitrary server files.

Affected Systems

The issue affects the danielgatis rembg tool prior to version 2.0.75. Any deployments running 2.0.74 or earlier are susceptible, regardless of operating system, when the custom model loading feature is exposed via the HTTP API.

Risk and Exploitability

The CVSS score of 5.3 indicates moderate severity. Exploitation requires sending a crafted HTTP request, which remote actors could perform without authentication. No EPSS data is available, and the vulnerability is not listed in the CISA KEV catalog, suggesting it is not widely exploited yet. Nonetheless, the ability to read arbitrary files poses a significant confidentiality risk.

Generated by OpenCVE AI on April 10, 2026 at 17:35 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update to Rembg v2.0.75 or later
  • If an update cannot be applied immediately, disable or restrict access to the custom model loading endpoint, or enforce strict input validation to prevent traversal of the file system

Generated by OpenCVE AI on April 10, 2026 at 17:35 UTC.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-3wqj-33cg-xc48 Rembg has a Path Traversal via Custom Model Loading
History

Thu, 23 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:danielgatis:rembg:*:*:*:*:*:*:*:*

Mon, 13 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Danielgatis
Danielgatis rembg
Vendors & Products Danielgatis
Danielgatis rembg

Fri, 10 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 10 Apr 2026 16:30:00 +0000

Type Values Removed Values Added
Description Rembg is a tool to remove images background. Prior to 2.0.75, a path traversal vulnerability in the rembg HTTP server allows unauthenticated remote attackers to read arbitrary files from the server's filesystem. By sending a crafted request with a malicious model_path parameter, an attacker can force the server to attempt loading any file as an ONNX model, revealing file existence, permissions, and potentially file contents through error messages. This vulnerability is fixed in 2.0.75.
Title Rembg has a Path Traversal via Custom Model Loading
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

Danielgatis Rembg
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-10T18:29:27.832Z

Reserved: 2026-04-09T00:39:12.206Z

Link: CVE-2026-40086

cve-icon Vulnrichment

Updated: 2026-04-10T18:29:15.990Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-10T17:17:12.663

Modified: 2026-04-23T15:08:22.550

Link: CVE-2026-40086

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-13T13:00:24Z

Weaknesses