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TI-2026-19288 Aliases CVE-2026-23946GHSA-339m-4qw5-j2g3

Tendenci has Authenticated Remote Code Execution via Pickle Deserialization

Priority LOW 34CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00837 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed tendenci (tendenci): 15.3.12tendenci (PyPI): 15.3.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Tendencitendencibefore 15.3.1215.3.12Patch availableCNA
—tendenci (PyPI)before 15.3.1215.3.12Patch availableGHSA-339m-4qw5-j2g3
  • tendenci VendorTendenci Affected before 15.3.12 Fixed in 15.3.12 Patch available CNA
  • tendenci (PyPI) Vendor— Affected before 15.3.12 Fixed in 15.3.12 Patch available GHSA-339m-4qw5-j2g3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tendenci:tendenci:*:*:*:*:*:*:*:*before 15.3.12VulnerableTendenci
  • cpe:2.3:a:tendenci:tendenci:*:*:*:*:*:*:*:* Versions before 15.3.12 Vulnerable ·Tendenci

Remediation

  • Fix · CNA tendenci (tendenci) Fixed in 15.3.12
  • Fix · GHSA-339m-4qw5-j2g3 tendenci (PyPI) Fixed in 15.3.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23946
  2. 2026-10-03 Alias added: GHSA-339m-4qw5-j2g3

References

Exploit 1

Patch 3

Advisory 4

Other 3

  • TI-2020-19097 Tendenci 12.3.1 - CSV/ Formula Injection CVSS 4.0MEDIUM 5.3
  • TI-2025-43174 A stored cross-site scripting (XSS) vulnerability in the Forums module of Tendenci CMS… CVSS 3.1MEDIUM 5.4
  • TI-2025-43173 A stored cross-site scripting (XSS) vulnerability in the Jobs module of Tendenci CMS… CVSS 3.1MEDIUM 5.4
  • TI-2020-11752 Tendenci 12.0.10 allows unrestricted deserialization in apps\helpdesk\views\staff.py. CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences