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EUVD-2026-266399

2026-10-15T11:35:45.425322+00:00

EUVD-2026-266399

fkie_cve-2026-23946

2026-10-15T11:35:45.425353+00:00

Tendenci is an open source content management system built for non-profits, associations and cause-based sites. Versions 15.3.11 and below include a critical deserialization vulnerability in the Helpdesk module (which is not enabled by default). This vulnerability allows Remote Code Execution (RCE) by an authenticated user with staff security level due to using Python's pickle module in helpdesk /reports/. The original CVE-2020-14942 was incompletely patched. While ticket_list() was fixed to use safe JSON deserialization, the run_report() function still uses unsafe pickle.loads(). The impact is limited to the permissions of the user running the application, typically www-data, which generally lacks write (except for upload directories) and execute permissions. This issue has been fixed in version 15.3.12.

GHSA-339m-4qw5-j2g3 — Tendenci Affected by Authenticated Remote Code Execution via Pickle Deserialization

2026-10-15T11:35:45.425389+00:00

Affected: PyPI: tendenci

A critical deserialization vulnerability exists in Tendenci Helpdesk module (NOTE, by default, Helpdesk is NOT enabled), affecting the version 15.3.11 and earlier. This vulnerability allows remote code execution (RCE) by an authenticated user with staff security level due to using Python's pickle module on the helpdesk /reports/. The damage is contained to the user that your Tendenci application runs.

**Key Finding:** The original CVE-2020-14942 was incompletely patched. While `ticket_list()` was fixed to use safe JSON deserialization, the `run_report()` function still uses unsafe `pickle.loads()`.

**Permission Scoping:** The impact is limited to the permissions of the user running the application, typically www-data, which generally lacks write (except for upload directories) and execute permissions.

## Vulnerability Details

### Affected Version - **Version:** Tendenci 15.3.11 and earlier (all versions since incomplete CVE-2020-14942 patch) - **Component:** `tendenci/apps/helpdesk/views/staff.py`

### Related CVE - **CVE-2020-14942:** Original pickle deserialization vulnerability (partially patched) - **GitHub Advisory:** GHSA-jqmc-fxxp-r589 - **Original Issue:** https://github.com/tendenci/tendenci/issues/867

### Tendenci User Role Hierarchy

| Level | Role | Description | |-------|------|-------------| | 0 | `is_superuser` | Highest privilege - full Django admin | | 1 | `is_staff` | user with Staff security level - can access helpdesk module | | 2 | Authenticated Use…

PYSEC-2026-1950 — Tendenci Affected by Authenticated Remote Code Execution via Pickle Deserialization

2026-10-15T11:35:45.425439+00:00

Affected: PyPI: tendenci

## Vulnerability Details

### Affected Version - **Version:** Tendenci 15.3.11 and earlier (all versions since incomplete CVE-2020-14942 patch) - **Component:** `tendenci/apps/helpdesk/views/staff.py`

### Tendenci User Role Hierarchy