PT-2026-26590 · Labring · Fastgpt

Arunstar · Published 2026-03-20 · Updated 2026-03-20 · CVE-2026-33075

Mitre

CVSS v4.0

9.4

Critical

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

FastGPT is an AI Agent building platform. In versions 4.14.8.3 and below, the fastgpt-preview-image.yml workflow is vulnerable to arbitrary code execution and secret exfiltration by any external contributor. It uses pull request target (which runs with access to repository secrets) but checks out code from the pull request author's fork, then builds and pushes Docker images using attacker-controlled Dockerfiles. This also enables a supply chain attack via the production container registry. A patch was not available at the time of publication.

Fix

Weakness Enumeration

CWE-829

CWE-494

Related Identifiers

CVE-2026-33075

Affected Products

Fastgpt

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-33075 · Security Note
• https://twitter.com/VulmonFeeds/status/2035028436222144783 · Twitter Post
• https://github.com/labring/FastGPT/security/advisories/GHSA-xfx8-w35j-485c · Note
• https://twitter.com/0dayPublishing/status/2034916386695163923 · Twitter Post