Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.get_format_strings 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 format_strings field through the Django admin, executing Python code as the web server user when news feeds render.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
treeio treeio unaffected
Version Status Constraints
0 affected ≤ 2.0

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/treeio/treeio cve-icon cve-icon
https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1101-L1109 cve-icon cve-icon
https://github.com/treeio/treeio/blob/bae3115f4015aad2cbc5ab45572232ceec990495/treeio/core/models.py#L1265-L1273 cve-icon cve-icon
https://github.com/treeio/treeio/issues/165 cve-icon cve-icon
https://www.vulncheck.com/advisories/treeio-through-2.0-insecure-deserialization-rce-via-admin-editable-pickle-fields cve-icon cve-icon
History

Sat, 07 Nov 2026 14:30:00 +0000

Type Values Removed Values Added
Description Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.get_format_strings 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 format_strings field through the Django admin, executing Python code as the web server user when news feeds render.
Title Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-07T14:17:57.859Z

Reserved: 2026-11-07T12:27:51.208Z

Link: CVE-2026-124318

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-07T15:17:16.270

Modified: 2026-11-07T15:17:16.270

Link: CVE-2026-124318

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-07T15:30:07Z

Weaknesses