CVE-2026-23946
Tendenci has Authenticated Remote Code Execution via Pickle Deserialization
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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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://github.com/tendenci/tendenci/security/advisories/GHSA-339m-4qw5-j2g3
- https://github.com/tendenci/tendenci/issues/867
- https://github.com/tendenci/tendenci/commit/23d9fd85ab7654e9c83cfc86cb4175c0bd7a77f1
- https://github.com/tendenci/tendenci/commit/2ff0a457614944a1b417081c543ea4c5bb95d636
- https://github.com/tendenci/tendenci/commit/63e1b84a5b163466d1d8d811d35e7021a7ca0d0e
References (8)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Quick Info
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