Auth bypass in Mervinpraison Praisonai

CVE-2026-47408

PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Versions prior to 0.1.4 have an Insecure Direct Object Reference. The `GET /workspaces/{workspace_id}/issues/{issue_id}/activity` endpoint is gated by `require_workspace_member(workspace_id)` and dispatches to `ActivityService.list_for_issue(issue_id)`, which executes `SELECT * FROM activity WHERE issue_id = :issue_id` with no workspace constraint. A user who is a member of any workspace can read the full activity log of any issue across the entire multi-tenant deployment. PraisonAI Platform version 0.1.4 patches the issue.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.004 (33.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-47408?
CVE-2026-47408 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-07-21.
How severe is CVE-2026-47408?
Medium severity. CVSS v3 base score is 6.5 out of 10.