---
id: CVE-2026-53536
title: Activepieces is an open source AI workflow automation platform
summary: >-
  Activepieces is an open source AI workflow automation platform. Prior to
  0.83.0, the /v1/step-files/signed download endpoint verified the supplied JWT
  against the shared signing secret but did not check the token's audience, and
  combined…
severity: none
cwe:
  - CWE-345
  - CWE-639
published: '2026-07-16'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53536'
references:
  - url: >-
      https://github.com/activepieces/activepieces/commit/2cb6148010a6c2a22900f4c8b08d75cc5c921d1c
    label: security-advisories@github.com
  - url: >-
      https://github.com/activepieces/activepieces/commit/afe852f60e39fcc6273d41e11f0765586b5a0e49
    label: security-advisories@github.com
  - url: 'https://github.com/activepieces/activepieces/releases/tag/0.83.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/activepieces/activepieces/security/advisories/GHSA-9723-fmff-mc24
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00236
epssPercentile: 0.13007
ingestedAt: '2026-07-18T20:24:54.500Z'
---

## Overview

Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /v1/step-files/signed download endpoint verified the supplied JWT against the shared signing secret but did not check the token's audience, and combined with a missing null-check on the decoded fileId, this allowed any caller holding any valid Activepieces JWT (including a freshly created user's own access token) to receive a step-file belonging to another tenant. The file returned was whatever PostgreSQL happened to scan first for type = FLOW_STEP_FILE, varying over time as the database changed, so an authenticated user could obtain step-file attachments belonging to other tenants on the same instance; the attacker could not target a specific victim or file, and the access was read-only with no integrity or availability impact. This issue is fixed in version 0.83.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.