TI-2026-28914 Aliases CVE-2026-40086 GHSA-3wqj-33cg-xc48

Rembg has a Path Traversal via Custom Model Loading

MEDIUM 63CWE-22Published 2026-04-10 · Updated 2026-04-10

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00603 49th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed rembg (danielgatis): 2.0.75rembg (PyPI): 2.0.75

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
danielgatis	rembg	before 2.0.75	2.0.75	Patch available	CNA
—	rembg (PyPI)	before 2.0.75	2.0.75	Patch available	GHSA-3wqj-33cg-xc48

rembg Vendordanielgatis Affected before 2.0.75 Fixed in 2.0.75 Patch available CNA
rembg (PyPI) Vendor— Affected before 2.0.75 Fixed in 2.0.75 Patch available GHSA-3wqj-33cg-xc48

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:danielgatis:rembg::::::::	before 2.0.75	Vulnerable	danielgatis

cpe:2.3:a:danielgatis:rembg:*:*:*:*:*:*:*:* Versions before 2.0.75 Vulnerable ·danielgatis

Remediation

Fix · CNA rembg (danielgatis) Fixed in 2.0.75
Fix · GHSA-3wqj-33cg-xc48 rembg (PyPI) Fixed in 2.0.75 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-40086
2026-10-03 Alias added: GHSA-3wqj-33cg-xc48

References

Other 2

TI-2025-18956 Rembg CORS misconfiguration CVSS 4.0HIGH 8.7
TI-2025-18955 Rembg allows SSRF via /api/remove CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences