Is CVE-2026-40086 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-40086, but active exploitation has not been confirmed.

Can CVE-2026-40086 be exploited remotely?

Yes. CVE-2026-40086 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40086?

CVE-2026-40086 has a CVSS score of 5.3 (MEDIUM).

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MEDIUMPOC

CVE-2026-40086

CWE-22Published: April 10, 2026· Updated: Apr 13, 2026

5.3

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-40086 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2026-40086. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.