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Vulnerability · Published Jan 22, 2026 · Assigned by GitHub_M

CVE-2026-23946Tendenci has Authenticated Remote Code Execution via Pickle Deserialization

Medium 6.8

In plain English

A medium-severity unsafe deserialization in tendenci from tendenci. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.8%top 42.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPItendenci15.3.12GHSA-339m-4qw5-j2g3
PyPItendenci15.3.12PYSEC-2026-1950

Affected products (as reported)

VendorProductVersions
tendenci tendenci < 15.3.12

Weakness: CWE-502, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

References