CVE-2026-53536Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-345CWE-639

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-16: 2Technical Details · 2026-07-16: 207-16
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-53536 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 sha… https://www.cve.org/CVERecord?id=CVE-2026-53536

    Post summary

    The text announces CVE-2026-53536, a flaw in Activepieces’ signed download endpoint prior to version 0.83.0.

    10020662
    58.1K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-53536 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 sha… https://www.cve.org/CVERecord?id=CVE-2026-53536 ----- Traducción: CVE-2026-53536 Act… http://infoflow.cloud`

    Post summary

    The text announces CVE‑2026‑53536, describing a flaw in Activepieces’ download endpoint before version 0.83.0, but does not provide a PoC, active exploitation evidence, or patch details.

    0001097
    92 followersView on X

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