CVE-2026-40086

Name: CVE-2026-40086
Creator: NVD / NIST
Published: 2026-04-10T17:17:12.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2026-40086 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.59%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Danielgatis	Rembg	< 2.0.75

References

https://github.com/danielgatis/rembg/commit/7c76d3cdc5757ffbda6a76664b24cfbecdb80273Patch
https://github.com/danielgatis/rembg/releases/tag/v2.0.75Product, Release Notes
https://github.com/danielgatis/rembg/security/advisories/GHSA-3wqj-33cg-xc48Exploit, Mitigation, Vendor Advisory

Timeline

Published: Apr 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-40086?

How severe is CVE-2026-40086?

CVE-2026-40086 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40086?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40086?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST