Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.getformatstrings and ModuleSetting.loads that allows…
CVE-2026-124318
Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.getformatstrings and ModuleSetting.loads that allows staff users to execute code via unverified pickle data. Attackers can store a crafted base64 pickle payload in an UpdateRecord formatstrings field through the Django admin, executing Python code as the web server user when news feeds render.
Assessment
- CVSS
- 8.6 (v4.0)
- Severity
- High
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 7 November 2026
- Last updated
- 7 November 2026
- Assigner
- VulnCheck
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
At the source
References
- https://github.com/treeio/treeio/issues/165
- https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1101-L1109
- https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1265-L1273
- https://github.com/treeio/treeio
- https://www.vulncheck.com/advisories/treeio-through-2.0-insecure-deserialization-rce-via-admin-editable-pickle-fields
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