What is CVE-2026-61643?

CVE-2026-61643 is a medium-severity vulnerability in Labring Fastgpt, classified under Incorrect Authorization. CVSS score: 5.9/10. Published 2026-07-15.

How severe is CVE-2026-61643?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Auth bypass in Labring Fastgpt

CVE-2026-61643

FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, an authenticated FastGPT user can save a workflow node that points to another user's private HTTP toolset by using a crafted saved tool id such as http-…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Labring Fastgpt — versions >= 4.14.17, < 4.15.0-beta5

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-61643?: CVE-2026-61643 is a medium-severity vulnerability in Labring Fastgpt, classified under Incorrect Authorization. CVSS score: 5.9/10. Published 2026-07-15.
How severe is CVE-2026-61643?: Medium severity. CVSS v3 base score is 5.9 out of 10.